[NETWORK CONNECTION LOST] - Unable to start session

[plazrat]

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Live Edit

Summary

I’ve been trying to fix it for 3 days, but nothing works. When I start a session in UEFN, it throws me into the lobby every time with the inscription “Network connection lost”, and only with this island. I’ve already tried everything.

LogValkyrie: Gathering intermediate assets to delete took 0.0 seconds
LogValkyrie: Intermediate assets cleanup took 0.0 seconds in total
LogValkyrieSummary: Starting Project Upload - https://content-service.bfda.live.use1a.on.epicgames.com/project/#/06a1ff51-8e9f-4374-ae67-e55677f081ce
LogValkyrieSummary: Syncing project CARS_MEGA_SKILL_TEST_XL
LogValkyrie: Syncing project CARS_MEGA_SKILL_TEST_XL with content service took  0.82 sec
LogValkyrieValidation: Display: Selecting allow lists for role 'VKCreateUGC'
LogValkyrieSummary: Project CARS_MEGA_SKILL_TEST_XL up to date
LogValkyrie: ProjectSizeRequest::Prepare for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8: GetRootModuleInfo
LogValkyrieSummary: No active session for current user. Creating new session.
LogValkyrie: Play succeeded.
LogValkyrie: ProjectSizeRequest for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8: GetProjectContentPackage
LogValkyrie: ProjectSizeRequest::GetProjectUploadSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::GetProjectDownloadSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::GetProjectCookedSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/STW/STW_Irwin/STW_Irwin.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogGameFeatures: Error: Dependency file:../../../FortniteGame/Plugins/GameFeatures/SaveTheWorld/SaveTheWorld.uplugin failed to transition with error GameFeaturePlugin.StateMachine.Registering.Plugin_Missing_GameFeatureData
LogValkyrieAccount: [UValkyrieOnlineInstance::ApplyUserPreferredQoSRegion] Region Auto: ME
LogValkyrie: ProjectSizeRequest::GetDependencyDownloadSizes for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::Completed for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogNet: Warning: Channel name will be serialized as a string: ValkyrieBeacon
LogValkyrieSummary: Valkyrie Beacon Connected!
LogValkyrieSummary: Connected to Session: 15521fc6c5ad4304be8ef47d943e4e45
LogValkyrieSummary: Session Setup Complete. About to Send Content!
LogValkyrieSummary: Checking for if the project can be uploaded
LogValkyrieSummary: Starting Project Upload - https://content-service.bfda.live.use1a.on.epicgames.com/project/#/06a1ff51-8e9f-4374-ae67-e55677f081ce
LogValkyrieSummary: Syncing project CARS_MEGA_SKILL_TEST_XL
LogValkyrie: Syncing project CARS_MEGA_SKILL_TEST_XL with content service took  0.77 sec
LogValkyrieSummary: Starting to upload file for module creation
LogValkyrieSummary: Attempting to upload 1 modules:
LogValkyrieSummary:   CARS_MEGA_SKILL_TEST_XL
LogValkyrieSummary: Successfully uploaded 2 files for module CARS_MEGA_SKILL_TEST_XL:
LogValkyrieSummary:   cars_mega_skill_test_xl.zip.json
LogValkyrieSummary:   cars_mega_skill_test_xl.zip
LogValkyrieSummary: Uploaded 2/2 files in 2.308409 seconds
LogValkyrieSummary: Successfully created module
LogValkyrieSummary: Creating Module Version
LogValkyrieSummary: Storing Project Snapshot
LogValkyrieSummary: Sending Content Update
LogValkyrieSummary: Calling UpdateContent on Valkyrie beacon with: ProjectId(06a1ff51-8e9f-4374-ae67-e55677f081ce) SnapshotId(72bfbc52-733e-4f19-8616-f77c0c37f9f6) ModuleId(2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8) ModuleVersion(8)
LogValkyrieSummary: RPCing content cook request to server: ProjectId(06a1ff51-8e9f-4374-ae67-e55677f081ce) SnapshotId(72bfbc52-733e-4f19-8616-f77c0c37f9f6)
LogValkyrieSummary: Project CARS_MEGA_SKILL_TEST_XL up to date
LogValkyrie: ProjectSizeRequest::Prepare for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8: GetRootModuleInfo
LogValkyrie: ProjectSizeRequest for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8: GetProjectContentPackage
LogValkyrie: ProjectSizeRequest::GetProjectUploadSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::GetProjectDownloadSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogHttp: Warning: HttpRetry: Resetting log verbosity to Warning due to requests being retried
LogValkyrie: ProjectSizeRequest::GetProjectCookedSize for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::GetDependencyDownloadSizes for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogValkyrie: ProjectSizeRequest::Completed for 2bbf5e9a-4eb9-16e3-cf17-3980fc0feac8
LogNet: Warning: UNetConnection::Tick: Connection TIMED OUT. Closing connection.. Elapsed: 30.00, Real: 30.00, Good: 30.00, DriverTime: 155.23, Threshold: 30.00, [UNetConnection] RemoteAddr: 15.185.241.151:15051, Name: IpConnection_1, Driver: Name:IpNetDriver_1 Def:BeaconNetDriver IpNetDriver_1, IsServer: NO, PC: NULL, Owner: ValkyrieBeaconClient_1, UniqueId: MCP:7875aef78aae4cfcbb175e0d04aa6ae9
LogNet: Error: UEngine::BroadcastNetworkFailure: FailureType = ConnectionTimeout, ErrorString = UNetConnection::Tick: Connection TIMED OUT. Closing connection.. Elapsed: 30.00, Real: 30.00, Good: 30.00, DriverTime: 155.23, Threshold: 30.00, [UNetConnection] RemoteAddr: 15.185.241.151:15051, Name: IpConnection_1, Driver: Name:IpNetDriver_1 Def:BeaconNetDriver IpNetDriver_1, IsServer: NO, PC: NULL, Owner: ValkyrieBeaconClient_1, UniqueId: MCP:7875aef78aae4cfcbb175e0d04aa6ae9, Driver = Name:IpNetDriver_1 Def:BeaconNetDriver IpNetDriver_1
LogValkyrieRequestManagerEditor: Warning: Encountered Network Error!
LogValkyrieRequestManagerEditor: Error: Failed to handle connection attempt (Network error occurred when connecting to a server after matchmaking completed. Error: UNetConnection::Tick: Connection TIMED OUT. Closing connection.. Elapsed: 30.00, Real: 30.00, Good: 30.00, DriverTime: 155.23, Threshold: 30.00, [UNetConnection] RemoteAddr: 15.185.241.151:15051, Name: IpConnection_1, Driver: Name:IpNetDriver_1 Def:BeaconNetDriver IpNetDriver_1, IsServer: NO, PC: NULL, Owner: ValkyrieBeaconClient_1, UniqueId: MCP:7875aef78aae4cfcbb175e0d04aa6ae9)
LogValkyrieSummary: Destroying Valkyrie Beacon
LogPackageName: Warning: GetLocalFullPath called on FPackagePath ../../../FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar which has an unspecified header extension, and the path does not exist on disk. Assuming EPackageExtension::Asset.
LoadErrors: Warning: While trying to load package /Game/Effects/Fort_Effects/Gameplay/Pickups/Effects/NS_Pickup_RareAmbient, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset'. Perhaps it has been deleted or was not synced?
LogSlateStyle: Warning: Missing Resource from 'CoreStyle' Style: 'Unable to find Color 'Colors.Foreground'.'

Steps to Reproduce

Launch Session in UEFN

Expected Result

It should start the session without crashing

Observed Result

When starting a session in UEFN, the session loads for a couple of minutes, and then crashes into Fortnite with the error NETWORK CONNECTION LOST

Platform(s)

PC

[plazrat]

Maybe it has some meaning in the message log. Because I’m already giving up

While trying to load package /Game/Effects/Fort_Effects/Gameplay/Vehicles/NS_Vehicle_LensFlare, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FN_Select_Float_from_Time_Of_Day was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FN_Select_Float_from_Time_Of_Day has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FN_Select_Float_from_Time_Of_Day.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_TurboBoost, a dependent package /Game/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_TurboBoost, a dependent package /Game/Effects/Niagara/Modules/Groups/FN_SetSpawnGroup was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Groups/FN_SetSpawnGroup has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Groups/FN_SetSpawnGroup.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_TurboBoost, a dependent package /Game/Effects/Niagara/Enum/EniagaraPartitionWaveForm was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Enum/EniagaraPartitionWaveForm has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Enum/EniagaraPartitionWaveForm.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Mud_Splash_Burst_Proto, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Mud_Splash_Burst_Proto, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Generic/Base/FN_Sprite was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Generic/Base/FN_Sprite has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Generic/Base/FN_Sprite.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/Bubbles/FN_WaterBubbles.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Water/DropsEffect/FN_Water_Drops_SnapToSurface was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/DropsEffect/FN_Water_Drops_SnapToSurface has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/DropsEffect/FN_Water_Drops_SnapToSurface.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Water/SplashEffect/FN_Water_splash_SnapToSurface was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/SplashEffect/FN_Water_splash_SnapToSurface has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/SplashEffect/FN_Water_splash_SnapToSurface.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Modules/Water/WaterBodyLocation was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Water/WaterBodyLocation has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Water/WaterBodyLocation.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Generic/FN_Debris_Sprite_SubUV was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Generic/FN_Debris_Sprite_SubUV has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Generic/FN_Debris_Sprite_SubUV.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/DynamicInputs/Random/FN_RandomVectorInCone was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/Random/FN_RandomVectorInCone has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/Random/FN_RandomVectorInCone.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_InWater_LargeSplash, a dependent package /Game/Effects/Niagara/Emitters/Water/FN_DistanceKillParticles was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/FN_DistanceKillParticles has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/FN_DistanceKillParticles.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Wheel_And_Tire_Interaction, a dependent package /Game/Effects/Niagara/Modules/Light/FN_Light_v4/FN_Light_Attributes was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Light/FN_Light_v4/FN_Light_Attributes has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Light/FN_Light_v4/FN_Light_Attributes.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Sparks_GPU was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Sparks_GPU has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Explosion_Update/NiagaraEmitters/NE_Sparks_GPU.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Streaks_Spike was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Streaks_Spike has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Streaks_Spike.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Explosion_Update/ModuleScripts/Camera_Distance_Fade was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Explosion_Update/ModuleScripts/Camera_Distance_Fade has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Explosion_Update/ModuleScripts/Camera_Distance_Fade.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Main was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Main has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Explosion_Update/NiagaraEmitters/NE_Explosion_Main.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/Explosion_Update/NS_Valet_Explosion_Asteria, a dependent package /Game/Effects/Explosion_Update/ModuleScripts/AffectExplosionPosition was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Explosion_Update/ModuleScripts/AffectExplosionPosition has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Explosion_Update/ModuleScripts/AffectExplosionPosition.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_Damage, a dependent package /Game/Effects/Niagara/Enum/ENiagaraCommonVectors was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Enum/ENiagaraCommonVectors has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Enum/ENiagaraCommonVectors.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_Damage, a dependent package /Game/Effects/Niagara/Modules/Attributes/FN_SourceParentID was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Attributes/FN_SourceParentID has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Attributes/FN_SourceParentID.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_Damage, a dependent package /Game/Effects/Niagara/DynamicInputs/Attributes/FN_GetVectorByID was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/Attributes/FN_GetVectorByID has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/Attributes/FN_GetVectorByID.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Valet/FX/Niagara/NS_Valet_Damage, a dependent package /Game/Effects/Niagara/Modules/Attributes/FN_Source_v2 was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Attributes/FN_Source_v2 has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Attributes/FN_Source_v2.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Physical_Surface_Explosion, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Physical_Surface_Explosion, a dependent package /Game/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA.uasset'. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Physical_Surface_Explosion, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision.uasset'. Perhaps it has been deleted or was not synced?

[Jimbohalo10]

Hi @plazrat
posted about this problem with Niagara
Numerous warnings caused by Niagara assets used by Fortnite occur when launching the project. - General / Issues and Bug Reporting - Epic Developer Community Forums (unrealengine.com)

[plazrat]

But I don’t use Niagara VFX. But if it is, I just don’t know how to find the menu where to turn off this effect.

[plazrat]

Maybe it’s because of the Sport Car spawner device, because I tried to put a lot of them in the usual creative and it also crashed with the error Network connection lost. And this is only with this transport.

*Finally, I had to remove 90% of the whiplashes to get the session to run.
*But they really freeze the game very much

I already made a post about it:

Massive issues with the Sports Car Spawner Device

Please select what you are reporting on: Creative What Type of Bug are you experiencing? Devices Summary Sports Car Spawner Devices cause the game to freeze when changing device settings, or when copying or loading them. And the game can crash from just a few vehicle. [Issues with the Sports Car Spawner Device ( PLEASE FIX )] Steps to Reproduce Place down a Sports Car Spawner in Creative or UEFN and change the settings, and when clicking save, the game will freeze. Or copy several…