# \#rpc **URL:** https://forums.unrealengine.com/tag/rpc/2430.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [LogNet: Warning: UNetDriver::ProcessRemoteFunction: No owning connection for actor BP\_Car\_C\_1. Function ServerUpdateState will not be processed.](https://forums.unrealengine.com/t/lognet-warning-unetdriver-no-owning-connection-for-actor-bp-car-c-1-function-serverupdatestate-will-not-be-processed/2717823)
**Author:** [@SgtFlexxx](https://forums.unrealengine.com/u/SgtFlexxx)\ **Replies:** 1\ **Last updated:** [May 24, 2026, 5:47pm UTC](https://forums.unrealengine.com/t/lognet-warning-unetdriver-no-owning-connection-for-actor-bp-car-c-1-function-serverupdatestate-will-not-be-processed/2717823 "2026-05-24T17:47:43Z")
Hello! My project utilizes ChaosVehicleMovement system, and it seems all of my vehicles with ChaosVehicleMovement component spam this log warning on repeat when a client has joined the game. Does anyone know a proper fi… --- ## [ServerUpdateCamera RPC](https://forums.unrealengine.com/t/serverupdatecamera-rpc/429685)
**Author:** [@anonymous\_user\_1e2504da](https://forums.unrealengine.com/u/anonymous_user_1e2504da)\ **Replies:** 3\ **Last updated:** [January 26, 2026, 12:37am UTC](https://forums.unrealengine.com/t/serverupdatecamera-rpc/429685 "2026-01-26T00:37:59Z")
What enables/disables the ServerUpdateCamera RPC? I see it taking up bandwidth in the Network Profiler, but I don’t need it as I have my own code updating the camera already. --- ## [Replicated actor component inside PlayerController gets messed up after seamless travel](https://forums.unrealengine.com/t/replicated-actor-component-inside-playercontroller-gets-messed-up-after-seamless-travel/384425)
**Author:** [@bstone](https://forums.unrealengine.com/u/bstone)\ **Replies:** 17\ **Last updated:** [November 19, 2025, 3:54pm UTC](https://forums.unrealengine.com/t/replicated-actor-component-inside-playercontroller-gets-messed-up-after-seamless-travel/384425 "2025-11-19T15:54:43Z")
Bumped into this nasty issue today. I have an actor component (that replicates) added to my PlayerController derived blueprint and it consistently gets destroyed after the seamless travel and never re-created after that. … --- ## [Is order of RPCs and property replication guaranteed between actors? Is it different with Iris?](https://forums.unrealengine.com/t/is-order-of-rpcs-and-property-replication-guaranteed-between-actors-is-it-different-with-iris/2642972)
**Author:** [@Kaltxi](https://forums.unrealengine.com/u/Kaltxi)\ **Replies:** 1\ **Last updated:** [August 16, 2025, 11:07pm UTC](https://forums.unrealengine.com/t/is-order-of-rpcs-and-property-replication-guaranteed-between-actors-is-it-different-with-iris/2642972 "2025-08-16T23:07:36Z")
I’m working on migration to Iris and found a peculiar problem. We have Widgets in the AHUD which initialize a cached HUD variable from APlayerController on NativeConstruct. With traditional replication it works fine, the… --- ## [Error 'Unable to resolve the preset' when Using Remote Preset with Plugin Remote Control API in Packaged Project](https://forums.unrealengine.com/t/error-unable-to-resolve-the-preset-when-using-remote-preset-with-plugin-remote-control-api-in-packaged-project/1864992)
**Author:** [@Matlebg4](https://forums.unrealengine.com/u/Matlebg4)\ **Replies:** 2\ **Last updated:** [May 19, 2025, 8:06am UTC](https://forums.unrealengine.com/t/error-unable-to-resolve-the-preset-when-using-remote-preset-with-plugin-remote-control-api-in-packaged-project/1864992 "2025-05-19T08:06:04Z")
Hello, I hope everything is ok for you. I am working on an Unreal Engine 5.3 project that utilizes the Remote Control API plugin. I use it to manipulate my level with a Remote Preset and Blueprint. Everything works fine… --- ## [Replication race condition between Replicated GameState and RPC call on client.](https://forums.unrealengine.com/t/replication-race-condition-between-replicated-gamestate-and-rpc-call-on-client/2403583)
**Author:** [@SkankHunt1000](https://forums.unrealengine.com/u/SkankHunt1000)\ **Replies:** 7\ **Last updated:** [March 22, 2025, 8:40pm UTC](https://forums.unrealengine.com/t/replication-race-condition-between-replicated-gamestate-and-rpc-call-on-client/2403583 "2025-03-22T20:40:58Z")
Hello, I’m working on a multiplayer card game. Think of my game flow as a state machine. And in each state, there will be data going from the server to the client, and then back again. State machine: Player1 does som… --- ## [AddMovementInput Not working on Server. Why?](https://forums.unrealengine.com/t/addmovementinput-not-working-on-server-why/478772)
**Author:** [@anonymous\_user\_b220333c](https://forums.unrealengine.com/u/anonymous_user_b220333c)\ **Replies:** 4\ **Last updated:** [March 1, 2025, 8:43pm UTC](https://forums.unrealengine.com/t/addmovementinput-not-working-on-server-why/478772 "2025-03-01T20:43:56Z")
I am trying to make a Pawn that can be controlled by a player and have it’s movement replicated. I don’t want to use Character pawn so please don’t suggest that. I understand that Default Pawns don’t automatically hand… --- ## [RPC vs Replicated Property for analog input](https://forums.unrealengine.com/t/rpc-vs-replicated-property-for-analog-input/2366312)
**Author:** [@Rancid\_Poncho](https://forums.unrealengine.com/u/Rancid_Poncho)\ **Replies:** 0\ **Last updated:** [March 1, 2025, 2:49pm UTC](https://forums.unrealengine.com/t/rpc-vs-replicated-property-for-analog-input/2366312 "2025-03-01T14:49:42Z")
For a server authoritative game, most of the controls I’ve implemented use reliable RPCs when input is started and completed. This works well for boolean controls that only have on and off states. So what do you use for… --- ## [Interface NetMulticast function only runs on Server](https://forums.unrealengine.com/t/interface-netmulticast-function-only-runs-on-server/2161303)
**Author:** [@Domnias](https://forums.unrealengine.com/u/Domnias)\ **Replies:** 2\ **Last updated:** [December 1, 2024, 4:13pm UTC](https://forums.unrealengine.com/t/interface-netmulticast-function-only-runs-on-server/2161303 "2024-12-01T16:13:27Z")
It seems to me that interface functions marked as NetMulticast defined in C++ only run on the Server when invoked from the Server. I made an example: test\_if.h #pragma once #include "CoreMinimal.h" #include "system/u… --- ## [Client can't call RPC Server even with a valid NetOwner.](https://forums.unrealengine.com/t/client-cant-call-rpc-server-even-with-a-valid-netowner/2118377)
**Author:** [@infinity-loulou](https://forums.unrealengine.com/u/infinity-loulou)\ **Replies:** 1\ **Last updated:** [November 13, 2024, 10:56am UTC](https://forums.unrealengine.com/t/client-cant-call-rpc-server-even-with-a-valid-netowner/2118377 "2024-11-13T10:56:02Z")
Hi everybody, and thank you for the help. It’s the first Actor i build for Multiplayer with replication so if you think i should have used another technique please tell me. I’m running UE5.4 with two player and as net … --- ## [Recording RPCs in Replay?](https://forums.unrealengine.com/t/recording-rpcs-in-replay/2067643)
**Author:** [@tlaik](https://forums.unrealengine.com/u/tlaik)\ **Replies:** 0\ **Last updated:** [October 14, 2024, 8:45am UTC](https://forums.unrealengine.com/t/recording-rpcs-in-replay/2067643 "2024-10-14T08:45:52Z")
I want to record RPCs (for things like step sounds) in my replays. The RPC is called correctly while playing and recording, but not when watching the replay. The RPC function is currently defined as such: UFUNCTION(Net… --- ## [How to send or receive data in a custom class with UE NetWork Framework?](https://forums.unrealengine.com/t/how-to-send-or-receive-data-in-a-custom-class-with-ue-network-framework/2045511)
**Author:** [@\_1994\_5](https://forums.unrealengine.com/u/_1994_5)\ **Replies:** 0\ **Last updated:** [September 30, 2024, 3:26am UTC](https://forums.unrealengine.com/t/how-to-send-or-receive-data-in-a-custom-class-with-ue-network-framework/2045511 "2024-09-30T03:26:47Z")
Does RPC and Replication depend on Component and Actor? So，How to send or receive data in a custom class? --- ## [RPCs validation in blueprints](https://forums.unrealengine.com/t/rpcs-validation-in-blueprints/2034825)
**Author:** [@JeiDiz1](https://forums.unrealengine.com/u/JeiDiz1)\ **Replies:** 0\ **Last updated:** [September 23, 2024, 10:39pm UTC](https://forums.unrealengine.com/t/rpcs-validation-in-blueprints/2034825 "2024-09-23T22:39:24Z")
Hello! I found this about validating RPCs: The questions is: How can RPC be validated in blueprints? Is it done automatically? If not how can I do that? --- ## [Regarding UE-24772: Reliable multicast RPCs can be dropped](https://forums.unrealengine.com/t/regarding-ue-24772-reliable-multicast-rpcs-can-be-dropped/387974)
**Author:** [@TheBunyip](https://forums.unrealengine.com/u/TheBunyip)\ **Replies:** 3\ **Last updated:** [September 19, 2024, 10:44pm UTC](https://forums.unrealengine.com/t/regarding-ue-24772-reliable-multicast-rpcs-can-be-dropped/387974 "2024-09-19T22:44:19Z")
With regards to this (Won’t Fix) issue would it at least be possible to add a clear warning when reliable multicast RPCs are being dropped? I spent a considerable amount of time trying to track down why my RPCs weren’t … --- ## [Hit limit of 96 saved moves (timing out or very bad ping?)](https://forums.unrealengine.com/t/hit-limit-of-96-saved-moves-timing-out-or-very-bad-ping/1763291)
**Author:** [@qimby123](https://forums.unrealengine.com/u/qimby123)\ **Replies:** 0\ **Last updated:** [March 20, 2024, 12:39pm UTC](https://forums.unrealengine.com/t/hit-limit-of-96-saved-moves-timing-out-or-very-bad-ping/1763291 "2024-03-20T12:39:38Z")
Hi everyone, please help me. I’m trying to add multiplayer support to the generation plugin. I’m trying to send from the server to clients information about generation, I break this information into parts, as it exceeds … --- ## [Incorrect RPC function behaviour on C++ Interface](https://forums.unrealengine.com/t/incorrect-rpc-function-behaviour-on-c-interface/1665968)
**Author:** [@asbe](https://forums.unrealengine.com/u/asbe)\ **Replies:** 3\ **Last updated:** [February 6, 2024, 10:50pm UTC](https://forums.unrealengine.com/t/incorrect-rpc-function-behaviour-on-c-interface/1665968 "2024-02-06T22:50:17Z")
Hi, I have an interface with RPC client functions such as UFUNCTION(Client, reliable) virtual void Func(); Overriden by a class with void Func\_Implementation() override; It all compiles and startup fine except the f… --- ## [RPC Pass Through Value Being Changed](https://forums.unrealengine.com/t/rpc-pass-through-value-being-changed/1652931)
**Author:** [@Fairchild](https://forums.unrealengine.com/u/Fairchild)\ **Replies:** 0\ **Last updated:** [January 30, 2024, 1:42am UTC](https://forums.unrealengine.com/t/rpc-pass-through-value-being-changed/1652931 "2024-01-30T01:42:42Z")
Player Character BP. Server RPC sets character rotation speed. That Event then calls another RPC for the owning client with a rotation speed passed through. Player attacks, first RPC is called slowing rotation to 50. A… --- ## [Multicast Event not running on the clients!](https://forums.unrealengine.com/t/multicast-event-not-running-on-the-clients/1496384)
**Author:** [@BiaXThePanda1](https://forums.unrealengine.com/u/BiaXThePanda1)\ **Replies:** 16\ **Last updated:** [December 17, 2023, 4:25pm UTC](https://forums.unrealengine.com/t/multicast-event-not-running-on-the-clients/1496384 "2023-12-17T16:25:31Z")
As you can see i am spawning a replicated actor called “SymbolPassword” from another replicated actor with switch has authority. But in SymbolPassword the MS multicast event doesnt run in the clients. Eventhough… --- ## [When I try to play my project it crashes](https://forums.unrealengine.com/t/when-i-try-to-play-my-project-it-crashes/1531990)
**Author:** [@Catasticfeet](https://forums.unrealengine.com/u/Catasticfeet)\ **Replies:** 2\ **Last updated:** [December 17, 2023, 3:50pm UTC](https://forums.unrealengine.com/t/when-i-try-to-play-my-project-it-crashes/1531990 "2023-12-17T15:50:53Z")
when I try to play my game it crashes and I get this error: Unhandled Exception: EXCEPTION\_ACCESS\_VIOLATION reading address 0x0000000000000cf8 UnrealEditor\_Engine!FRootMotionSourceGroup::HasActiveRootMotionSources() \[D… --- ## [Why cant the client hit the enemy I'm fairly new to multiplayer and even unreal](https://forums.unrealengine.com/t/why-cant-the-client-hit-the-enemy-im-fairly-new-to-multiplayer-and-even-unreal/1524171)
**Author:** [@Catasticfeet](https://forums.unrealengine.com/u/Catasticfeet)\ **Replies:** 2\ **Last updated:** [December 14, 2023, 1:43pm UTC](https://forums.unrealengine.com/t/why-cant-the-client-hit-the-enemy-im-fairly-new-to-multiplayer-and-even-unreal/1524171 "2023-12-14T13:43:11Z")
please help Player: enemy: --- ## [Most basic setup required to get a net multicast function to work?](https://forums.unrealengine.com/t/most-basic-setup-required-to-get-a-net-multicast-function-to-work/449440)
**Author:** [@anonymous\_user\_a4811d36](https://forums.unrealengine.com/u/anonymous_user_a4811d36)\ **Replies:** 3\ **Last updated:** [December 6, 2023, 5:52pm UTC](https://forums.unrealengine.com/t/most-basic-setup-required-to-get-a-net-multicast-function-to-work/449440 "2023-12-06T17:52:42Z")
I’ve been trying to get a net multicast function to fire and I can’t seem to do it no matter what I try. This is the setup I feel like should work, being run from an actor that just inherits from AActor and is being plac… --- ## [when I play as a client, the enemy's life does not change.](https://forums.unrealengine.com/t/when-i-play-as-a-client-the-enemys-life-does-not-change/1334155)
**Author:** [@Hoshinami](https://forums.unrealengine.com/u/Hoshinami)\ **Replies:** 0\ **Last updated:** [October 16, 2023, 10:14am UTC](https://forums.unrealengine.com/t/when-i-play-as-a-client-the-enemys-life-does-not-change/1334155 "2023-10-16T10:14:12Z")
Could anyone help me with this problem? I did a small project and it’s the first time I’ve tried to do multiplayer, could you tell me if there’s something wrong? When I play as a server, the enemy’s life for the client c… --- ## [Session Creation on Dedicated Server](https://forums.unrealengine.com/t/session-creation-on-dedicated-server/1295307)
**Author:** [@AbuhurairaZahid](https://forums.unrealengine.com/u/AbuhurairaZahid)\ **Replies:** 0\ **Last updated:** [September 14, 2023, 12:40pm UTC](https://forums.unrealengine.com/t/session-creation-on-dedicated-server/1295307 "2023-09-14T12:40:44Z")
I have packaged a dedicated server which is running on my local Machine. Android Devices are able to connect with it but they are unable to Create any Session in Server. how can i configure server for this purpose. Like … --- ## [How does CharacterMovementComponent handle resubmitting multiple lost moves?](https://forums.unrealengine.com/t/how-does-charactermovementcomponent-handle-resubmitting-multiple-lost-moves/487831)
**Author:** [@galact1c](https://forums.unrealengine.com/u/galact1c)\ **Replies:** 2\ **Last updated:** [May 20, 2023, 6:31pm UTC](https://forums.unrealengine.com/t/how-does-charactermovementcomponent-handle-resubmitting-multiple-lost-moves/487831 "2023-05-20T18:31:51Z")
I’m trying to understand how this part of the CharacterMovementComponent works: The system for buffering saved moves already ensures that movement information lost in transit will be resubmitted and evaluated. This … --- ## [RPC Sync call/Delegate/Callback?](https://forums.unrealengine.com/t/rpc-sync-call-delegate-callback/834981)
**Author:** [@Swogers](https://forums.unrealengine.com/u/Swogers)\ **Replies:** 2\ **Last updated:** [March 31, 2023, 3:48pm UTC](https://forums.unrealengine.com/t/rpc-sync-call-delegate-callback/834981 "2023-03-31T15:48:25Z")
I wanted to know the method possible to call a Server RPC with a callback function. I know Delegates do this, but you cant have a delegate within an RPC function. So i tried to pass a Self reference, and thats not helpf… --- ## [Calling Pawn client method on an unpossessed pawn](https://forums.unrealengine.com/t/calling-pawn-client-method-on-an-unpossessed-pawn/796719)
**Author:** [@MaidenlessUndead](https://forums.unrealengine.com/u/MaidenlessUndead)\ **Replies:** 2\ **Last updated:** [March 25, 2023, 6:37am UTC](https://forums.unrealengine.com/t/calling-pawn-client-method-on-an-unpossessed-pawn/796719 "2023-03-25T06:37:18Z")
When I enter a vehicle I’m unpossesing a player character and possessing a vehicle. After that i’m calling a player pawn client method to update UI. For some reason on an unpossessed pawn the client method is only called… --- ## [RPC RunOnServer calling from Client, not working](https://forums.unrealengine.com/t/rpc-runonserver-calling-from-client-not-working/759826)
**Author:** [@BDC\_Patrick](https://forums.unrealengine.com/u/BDC_Patrick)\ **Replies:** 2\ **Last updated:** [January 30, 2023, 9:10pm UTC](https://forums.unrealengine.com/t/rpc-runonserver-calling-from-client-not-working/759826 "2023-01-30T21:10:29Z")
Hi there… I´m currently struggling with this problem, where I can´t call an Event with RunonServer as Replicating set, via a Client Event. All I found in Google were scenarios, where the RPC Server event is in another … --- ## [Кто владелец для rpc запроса, как понять?](https://forums.unrealengine.com/t/rpc/740011)
**Author:** [@HEPEBAP1](https://forums.unrealengine.com/u/HEPEBAP1)\ **Replies:** 1\ **Last updated:** [January 3, 2023, 6:51pm UTC](https://forums.unrealengine.com/t/rpc/740011 "2023-01-03T18:51:27Z")
всем привет, никак не могу понять логику RPC запросов, может кто-то помочь? во естьь у меня контроллер, в нем есть game manager, а в нем action manager, все реплицировано и вот в ui я жму кнопку которая в action manage… --- ## [who is owner for actor for rpc?](https://forums.unrealengine.com/t/who-is-owner-for-actor-for-rpc/740012)
**Author:** [@HEPEBAP1](https://forums.unrealengine.com/u/HEPEBAP1)\ **Replies:** 0\ **Last updated:** [January 1, 2023, 8:04pm UTC](https://forums.unrealengine.com/t/who-is-owner-for-actor-for-rpc/740012 "2023-01-01T20:04:45Z")
hello everyone, I can’t understand the logic of RPC requests in any way, can someone help? in I have a controller, it has a game manager, and in it an actionmanager, everything is replicated and in the ui I press the b… --- ## [Can ACharacter have two UActorComponents that have RPC calls?](https://forums.unrealengine.com/t/can-acharacter-have-two-uactorcomponents-that-have-rpc-calls/730974)
**Author:** [@m00nB33r](https://forums.unrealengine.com/u/m00nB33r)\ **Replies:** 2\ **Last updated:** [December 18, 2022, 3:24pm UTC](https://forums.unrealengine.com/t/can-acharacter-have-two-uactorcomponents-that-have-rpc-calls/730974 "2022-12-18T15:24:07Z")
I have an issue where I’m getting linker errors… I have a C++ class that inherits from ACharacter. I have two C++ UActorComponents classes. First one I have been working with for several days no problems with RPC call… [Next page](https://forums.unrealengine.com/tag/rpc/2430.md?match_all_tags=true&page=1&tags%5B%5D=rpc)