Unreal Engine Issues

GameThread + AsyncLoadingThread deadlock - StaticLoadObject vs. StaticAllocateObject

User reported encountering a deadlock between GameThread and AsyncLoadingThread and provided two callstacks.User quote I've been running into a deadlock intermittently with a custom blueprint conso ...

FMassArchetypeData::ExecutionFunctionForChunk crashes on binding shared fragments

FMassArchetypeData::ExecutionFunctionForChunk is using wrong mappings while binding shared fragments. It's using RequirementMapping.ChunkFragments while it should use RequirementMapping.ConstSharedF ...

Blueprint Nodes no longer Grid Snap to straight lines

5.0:[Link Removed] 5.3:[Link Removed] Attached is a video of the two screenshots overlaid and lined up by their top edges. It appears that the Begin Play node (and others?) have more padding now, w ...

Record with timecode as source but false on start at Timecode causes crash

crash from a race condition between interchange worker dispatcher and worker handler

[CrashReport]UnrealEditor-Core!FNamedTaskThread::ProcessTasksNamedThread(int,bool) [TaskGraph.cpp:760]

Generated from CrashReporter ...

Atmosphere related scan line artifacts for Path Tracer with MGPU

There are two UDNs related to this issue.  It makes the Path Tracer unusable with MGPU, with atmosphere enabled. I already have a one-line fix implemented and tested.  The atmosphere scan line arti ...

Possible: JPG encoding for Highscreenshot broken in 5.1 Linux build

UDN report of JPG encoding not working: [Link Removed] Can we ask QA to try to repro? ...

Nvidia DLSS plugin causing crash in PIE

The editor is crashing with the 5.1 Nvidia DLSS plugin enabled after performing PIE. This issue is occurring in Binary //UE5/Release-5.1 at CL 23901901 This issue is NOT occurring in Binary //UE5/ ...

Stencil Test Post Process Breaks in Stereo Rendering

[Link Removed] post process material is blacking out our left eye A test project is provided. ...