Unreal Engine Issues

Crash when changing "MaximumTextureSize" in "LeaveExistingMips" state

No problem with 4.22.3 ...

Unwanted black boundaries are displayed in a vertical split-screen with 3 players.

Floating point error from UGameViewportClient::SplitscreenInfo causes this issue. FMath::TruncToInt( 3240 /*ViewportSize*/ * 0.333f/*Ratio in SplitScreenInfo*/ ) = 1079 I suggested a following t ...

Niagara system loses source emitters when moving Engine from 4.22 or earlier to 4.23 or later.

The following code causes this behavior.// NiagaraSystem.cpp for (FNiagaraEmitterHandle& EmitterHandle : EmitterHandles) { EmitterHandle.ConditionalPostLoad(NiagaraVer); if (!EmitterHandl ...

LOD distance does not match between StaticMesh and SkeletalMesh

PostProcessMaterial is not applied to NiagaraEditor preview

None referenced NiagaraEmitters are contained in packaged game

[Image Removed] It's just storage waste. Because those assets will be never loaded on runtime. ...

Sequences with a playback end on a subframe will not fire events that lie between the last whole frame and playback end

Sequences that end on a subframe will not evaluate past the last whole frame, preventing events from triggering that should. ...

Replay rollback state doesn't recreate per-instance components

Actor rollback state saved and restored by the replay system for placed actors in the level does not take into consideration per-instance replicated components, so they won't be recreated when the a ...

Renaming a Blueprint variable loses override in grandchild Blueprint

Renaming a Blueprint variable loses override in grandchild Blueprint. Modifying and saving the BP_Child fixes the issue with BP_Grandchild losing overrides.  ...

It may be possible to send an actor RPC before successful replication of the actor

It was reported on UDN that it's possible to receive an RPC for an actor before the actor itself has replicated. The net driver tries to prevent this possibility by calling ReplicateActor in UNetDri ...