ULoadingScreenManager::ShowLoadingScreen() causes a nested UWorld::Tick() that leads to a crash when using CommonLoadingScreen in Lyra.

UE - Content - Sample - Apr 24, 2023

Encountering a crash in Lyra when you hit PIE if you have an animation montage document open with an animation segment selected and the preview scene visible in the animation segment details panel. ...

Race condition in cached mesh draw commands removal.

UE - Rendering Architecture - RHI - Apr 21, 2023

A wait was removed from UpdateAllPrimitivesSceneInfos that introduced a race condition with mesh draw command caching. ...

VCam Freeze During Play / Simulate

UE - Virtual Production - Tools - Virtual Camera - Apr 20, 2023

VCam Freeze During Play / Simulate - "LogUIActionRouter: Cleaned out [0] inactive UI action bindings" Hi. So I can successfully use the VCamActor with my iPad Pro during non-play/simulate mode. ...

Bridge plugin causing crash when right-clicking content browser on Mac

Quixel - Apr 5, 2023

Right clicking in the content browser causes a crash with the Quixel Bridge plugin enabled.  This issue is occurring in Binary //UE5/Release-5.2-Preview-2 @ CL 24887336 This issue is not occurring ...

Light function materials using WorldPosition do not render correctly to volumetric fog if there is more than one

UE - Graphics Features - Mar 27, 2023

There is a one-line fix for this in a shader file, see their PR on GitHub:https://github.com/EpicGames/UnrealEngine/pull/10251/files ...

VCamMultiUser is missing VCAMCORE_API on structs

UE - Virtual Production - Tools - Virtual Camera - Mar 17, 2023

Salesforce link [Link Removed] ...

Crash when playing HLS video with ElectraPlayer on iOS16

Media Framework - Mar 15, 2023

Licensee reported crash when playing HLS video with ElectraPlayer on iOS16. According to their research, we can avoid the fix by doing the following: Delete check() in the corresponding line Engine ...

Adding parent constraint to control rig in shot crashes the editor

UE - Anim - Sequencer - Anim in Engine - Mar 10, 2023

Adding a constraint to a control rig in a subsequence will crash the editor. ...

JobObject appears to break /ZI pdb compiles

UE - Foundation - Cpp Tools - UnrealBuildTool - Mar 9, 2023

It seems that the [Link Removed] UBT creates to ensure any child processes are terminated on close is somehow affecting the mspdbsrv process that cl is spawning and terminating it when cl is finishe ...

Automotive Materials - ClearCoat Specular Artifact with Saturation ~1

UE - Graphics Features - Mar 8, 2023

[Link Removed][Link Removed] ...