Unreal Engine Issues

Cloth Rendering - Optimizations cause a one frame geometry stretch when off screen cloth is teleported back on screen.

Render optimizations are causing the cloth render data to be updated one frame too late after an off screen cloth object has been teleported back on screen. The optimisation triggers itself after a ...

Android Vulkan Preview is black when Play in VR

Integrat PhysX crash fixes

[Concurrency] - Voice Steal Release Time Doesn't Work when using a Priority Based Resolution Rule

When using a Priority based Concurrency rule, the Voice Steal Release Time is ignored and ejected sounds stop abruptly. Test Notes: See attached video. Note: I've shelved the test map and assets ...

Sometimes when Sequencer window refreshes the mute property on tracks are toggled

Issue was noticed by Grayson in For.tnite/Main. Regression: No this occurred similarly in 4.27 still not 100% repro but some modification in sequence triggered toggling the mute track ...

The CVar r.MeshStreaming doesn't influence the DDCKey of staticmesh, but it does for skeletalmesh DDCKey.

Renaming a SkinnedMeshComponent onto a different owning actor will cause issues with FAnimUpdateRateManager

As mentioned in the UDN - the user tried to rename an SMC to a different actor, which leaves the URO manager left with an incorrect data as it is not aware of the move. User proposed overriding Post ...

The Niagara Staticmesh data interface node Random Tri Coords doesn't respect Emitter's Deterministic Settings

From UDN: We are using the Cascade particle system and we want to render the same scene with multiple cameras, so multiple renders are required. In order to ensure that the result of the particle s ...

Shader compilation failure crash with DX12, Tesselation, Distance fields, Instanced Stereo, and Hierarchical LOD Coloration viewmode

upd. Regression was checked on //UE4/Release-4.26 CL 15973114, issue wasn't reproduced. Regression - YES Shader compilation failure crash with DX12, Tesselation, Instanced Stereo, and Hierarchical ...

[Submix][Recording] - Existing Sound Wave to Overwrite option has no effect

This is an old bug that looks like it never made its way into JIRA. Adding for documentation.  ...