Unreal Engine Issues

Dynamic NavMesh disappears when loading/unloading SubLevels

A DynamicNavMesh within a NavMeshBoundsVolume placed in a SubLevel will disappear if loading/unloading another SubLevel that has completely nothing to do with the DynamicNavMesh. Using a setup with ...

Client PlayerState is null on joining online session

APlayerController::ClientStartOnlineSession() checks PlayerState at the start of a game after loading a level. Due to time needed to load in, client player state may may return NULL ...

The Remove-On-Break feature, set on Fracture Mode on Geometry Collections, stops shrinking and shows strange behaviors

The Remove-On-Break (ROB) feature, set on Fracture Mode on Geometry Collections (GC), was supposed to make the particle shrink until it vanishes. When the GC goes to sleep the shrinking stops and sh ...

ComponentOverlapMultiByChannel with a rotated simple collision PrimComp misses overlap vs. complex collision

UWorld::ComponentOverlapMultiByChannel and internally, the call to FBodyInstance::OverlapMulti, misses overlaps and blocking hits when the PrimComp's (the component used to test overlaps) mesh uses ...

Movie Render Queue Deferred Lighting(Detail Lighting) only outputs Lighting Only

This is not a regression. Tested in //UE4/Release-4.27 CL#18319896 Movie Render Queue Deferred Lighting(Detail Lighting) appears to only output Lighting Only.  ...

A GeometryCollection that was broken and is going through shrinking will reset the size of its particles if a second level is broken

Might relate to issue [Link Removed] In Progress - "The Remove-On-Break feature, set on Fracture Mode on Geometry Collectio ...

Physics Constraint Component loss of accuracy

Physics Constraint Component has lost accuracy between Unreal versions 5.2 and 5.4 (and up). When measuring the exact distance between rigid bodies constrained by a Physics Constraint Component, the ...

Shortcuts do not appear to work for the visual logger

Shortcuts do not appear to work for the visual logger in the editor preferences ...

Crash when undoing emitter deletion in Niagara System

[CrashReport] OpenGL - FRenderResource::ReleaseResource()

This is an infrequent but longstanding Linux crash that has occurred since 4.11. This is not a Linux-specific crash and can happen on Windows too (see [Link Removed]). ...