Unreal Engine Issues
Unreal Engine Issues
Client disconnect during seamless travel results in incorrect NumPlayers and NumTravellingPlayers
UE - Networking - Jul 31, 2024This issue seems to stem from HasClientLoadedCurrentWorld returning true in AGameMode::RemovePlayerControllerFromPlayerCount. When removing a player controller, the GameMode checks if a seamless tra ...
Objects that return false for NeedsLoadForClient not loaded on listen servers
UE - Networking - Jul 19, 2024For instances that are not a dedicated client or dedicated server (e.g. packaged games with TargetType "Game"), GIsClient will be true, but GIsServer will be false. This leads to objects that retur ...
FNetGUIDCache warning when attaching non-replicated component to a replicated scene component
UE - Networking - Jul 18, 2024When the replicated scene component's AttachChildren array is replicated, the package map attempts to serialize the non-replicated component, causing the warning that the object is not supported. ...
Reliable subobject creation bunch may overwrite previously received property on the actor
UE - Networking - Jun 21, 2024This seems to occur because of how reliability and the retransmission of dropped data is handled in the engine. If a reliable bunch is dropped, the entire bunch will be resent, but any unreliable bu ...
Join in progress clients won't receive that a net startup actor is hidden
UE - Networking - Jun 21, 2024This seems to be because IsNetRelevantFor checks if the actor is hidden, resulting in a hidden actor not being considered relevant to clients. However, if it is a net startup actor, this will result ...
PostReplicatedChange called for fast array item even when no values change
UE - Networking - Jun 7, 2024Unless a property is set to REPNOTIFY_Always, we compare the property's received value to the current value on the client before calling the OnRep function. However, when determining if a fast array ...
Actors in always loaded sublevels are not immediately recorded into replays
UE - Networking - May 24, 2024In FReplayHelper::ReplicateActor, we check Connection->ClientHasInitializedLevel(Actor->GetLevel()) to see if the actor should create a channel or not. However, the DemoNetConnection does not have a ...
Replication errors when connecting Shipping build to Test/Development build
UE - Networking - May 14, 2024See linked UDN for more info. This issue was reported for Iris, but I believe package map errors occur in the current replication system as well. ...
Crash when seamlessly travelling from World Partition map
UE - Networking - May 9, 2024Based on the licensee's report, the crash seems to be occurring due to the WorldDataLayers actor, and setting this actor to never be dormant seems to resolve the issue. ...
Investigate crash with replication nested ever changing attachments
UE - Networking - May 7, 2024There seems to be an issue with replicated attachments ending up causing cyclical setups resulting in crash on clients. It was reported for 5.2 but even after patching up code it seems to occur. ...