Unreal Engine Issues

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 ...

SynthComponent does not execute OnStop() after calling Stop()

SynthComponent does not execute OnStop() after calling Stop(). OnStop() will be called in PumpPendingMessages() via OnGeneratePCMAudio(). But after stopping the AudioComponent, the procedural Sound ...

Wake/Sleep events are not properly handled with Welding

Wake/Sleep events are not generated for components set to generate wake events after having a component not set to generate wake events welded to them. Wake/Sleep events are also not dispatched for ...

Landscape Resample Tools does not keep Streaming Proxy

alone ...

Landscape Resample Crashes Editor in Sublevel Map

PrecomputedAOMask cannot be used when Virtual Texture is enabled

The problem is that when the VirtualTexture lightmap is enabled, the value returned by the material node's PrecomputedAOMask is incorrect. ...

Branching Point Invalidates looping section settings

Opening a new sequence can have SavePreAnimatedState and RestorePreAnimatedState called out of order

When switching to a sequence where the current time is not in the target view range the PreAnimatedState of the new sequence will be saved before restoring the PreAnimatedState of the old sequence.  ...

Blueprint Node "Get Actors" for Layers in Level Blueprint causes crash in Packaged .exe

Blueprint Node "Get Actors" for Layers in Level Blueprint causes crash in Packaged .exe The Blueprint node "Get Actors" for Layers in the Level Blueprint causes an instant crash in a built developm ...

UBT Output log encoding does not match if non-ASCII characters are in the UBT output

UBT Output log encoding does not match if non-ASCII characters are in the UBT output. Before UE4.23, UBT output encoding problems only exist in the editor "Compiler Log" under Developer Tools, and i ...