Unreal Engine Issues

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.  ...

When Mobile Deferred Shading, the DBuffer Decal is affected by metallic value

Use Deferred Shading (r.Mobile.ShadingPath=1) Enable DBuffer Decal All Lights’s mobility is Static Decal Material settings : Material Domain - Deferred DecalBlend Mode - TranslucentDecal Blend Mo ...

When using All Nearby Spawned Actors, the number of recorded animation frames is not enough.

The licensee wants to record the same number of frames as the animation in "Content/TakeRecorder_test/Grayman/anm/". I thought that increasing the number of frames by 1F on Sequence would solve the ...

Incorrect normal calculation when rotating a ProceduralMeshComponent

Issue happens on meshes loaded from FBX and used to create a ProceduralMeshComponent with CreateMeshSection_LinearColor function ...

[CrashReport]UE4Editor-AudioMixerXAudio2!Audio::FMixerPlatformXAudio2::OpenAudioStream(Audio::FAudioMixerOpenStreamParams const &) [AudioMixerPlatformXAudio2.cpp:951]

This issue is occurring on startup for users. This could be potentially related to a recent Windows Update. ...

unreal.py stub can overload IDE parsing limits

We should consider splitting this into separate per-module files that are merged together via imports. Any strong dependencies (eg, inheritance) need to import the type being inherited. ...