Session Crash

General Issues and Bug Reporting
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1

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Summary

When loading a session in UEFN the session launches fine, when I start the game Fortnite and the Session crashes making me have to restart Fortnite.
No errors show up in the log and I have tried checking the last part of code that runs and commenting that out but the same issue arises. I am unable to continue work within my game because of these crashse.

Steps to Reproduce

Load up a UEFN Session, launch game, Fortnite crashes

Expected Result

The game to start

Observed Result

The game crashes

Platform(s)

Windows / PC

2

I have now removed all verse devies from my world and it still crashes when trying to start game on a session. So, this isn’t a verse issue this seems to be a UEFN bug.

3

Do you have a Sport Car Spawner Device on your map? Lately, they have been causing my game to crash and freeze.

4

Nope, the only devices I have now in my map after removing the verse devices, prop manipulators and that’s all

5

I have the same problem, but I have errors:

LogValkyrieSummary: No active session for current user. Creating new session.
LogValkyrie: Play succeeded.
LogSlate: Warning: Slate: Had to block on waiting for a draw buffer
LogValkyrie: ProjectSizeRequest for ef802c66-44d1-7c14-50ca-118ea16ca38d: GetProjectContentPackage
LogValkyrie: ProjectSizeRequest::GetProjectUploadSize for ef802c66-44d1-7c14-50ca-118ea16ca38d
LogValkyrie: ProjectSizeRequest::GetProjectDownloadSize for ef802c66-44d1-7c14-50ca-118ea16ca38d
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/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
LogValkyrieAccount: [UValkyrieOnlineInstance::ApplyUserPreferredQoSRegion] Region Auto: NAE
LogValkyrie: ProjectSizeRequest::Cancel for ef802c66-44d1-7c14-50ca-118ea16ca38d - Content (re)cook error errors.com.epicgames.pre-processing.failed.
JOB_ID=850156e6-6a80-453a-9c27-5a7ca8c6174f
LogOnlineSession: Warning: MCP: FindSingleSession request failed. Invalid response. code=404 error={
  "errorCode" : "errors.com.epicgames.modules.matchmaking.unknown_session",
  "errorMessage" : "unknown session id 2b62af305600482f8d98a3f4661ae316",
  "messageVars" : [ "2b62af305600482f8d98a3f4661ae316" ],
  "numericErrorCode" : 12101,
  "originatingService" : "fortnite",
  "intent" : "prod-live"
}
LogOnline: Warning: OSS: Async task 'FOnlineAsyncTaskMcpFindSingleSession bWasSuccessful: 0' failed in 0.065969 seconds
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/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
LogValkyrieAccount: [UValkyrieOnlineInstance::ApplyUserPreferredQoSRegion] Region Auto: NAE
LogNet: Warning: Channel name will be serialized as a string: ValkyrieBeacon
LogValkyrieSummary: Valkyrie Beacon Connected!
LogValkyrieSummary: Connected to Session: 390ce02acdf24e36925665670f07c1b6
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/#/4639a73b-41e1-bfc0-cb3d-a5abcc162768
LogValkyrieSummary: Syncing project MyFirstProject
LogSlate: Warning: Slate: Had to block on waiting for a draw buffer
LogValkyrie: Saving project source control settings to disk took 0.00 sec
LogValkyrie: Syncing project MyFirstProject with content service took  0.49 sec
VerseBuild: Warning: C:/Users/18182/Documents/Fortnite Projects/MyFirstProject/Plugins/MyFirstProject/Content/Code/zone_manager_device.verse(238,9, 249,1): Script warning 2000: Unreachable code - previous expression is guaranteed to exit early.
VerseBuild: Warning: C:/Users/18182/Documents/Fortnite Projects/MyFirstProject/Plugins/MyFirstProject/Content/Code/zone_manager_device.verse(238,9, 249,1) : Script warning 2000: Unreachable code - previous expression is guaranteed to exit early.
LogValkyrieSummary: Starting to upload file for module creation
LogValkyrieSummary: Successfully created module
LogValkyrieSummary: Creating Module Version
LogValkyrieSummary: Sending Content Update
LogValkyrieSummary: Calling UpdateContent on Valkyrie beacon with: ProjectId(4639a73b-41e1-bfc0-cb3d-a5abcc162768) SnapshotId(9a94edca-2f92-4257-b7c9-59992c960947) ModuleId(ef802c66-44d1-7c14-50ca-118ea16ca38d) ModuleVersion(955)
LogValkyrieSummary: RPCing content cook request to server: ProjectId(4639a73b-41e1-bfc0-cb3d-a5abcc162768) SnapshotId(9a94edca-2f92-4257-b7c9-59992c960947)
LogValkyrieSummary: Project MyFirstProject up to date
LogValkyrie: ProjectSizeRequest::Prepare for ef802c66-44d1-7c14-50ca-118ea16ca38d
LogValkyrie: ProjectSizeRequest for ef802c66-44d1-7c14-50ca-118ea16ca38d: GetRootModuleInfo
LogValkyrie: ProjectSizeRequest for ef802c66-44d1-7c14-50ca-118ea16ca38d: GetProjectContentPackage
LogValkyrie: ProjectSizeRequest::GetProjectUploadSize for ef802c66-44d1-7c14-50ca-118ea16ca38d
LogValkyrie: ProjectSizeRequest::GetProjectDownloadSize for ef802c66-44d1-7c14-50ca-118ea16ca38d
LogValkyrie: ProjectSizeRequest::Cancel for ef802c66-44d1-7c14-50ca-118ea16ca38d - Content (re)cook error errors.com.epicgames.pre-processing.failed.
JOB_ID=850156e6-6a80-453a-9c27-5a7ca8c6174f
LogValkyrieSummary: Server Summary - Successfully activated content on all platforms
6

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