Unreal Engine Issues

Adding a key to an Absolute transform section will accumulate an extra transform offset when a transform override is set on a sequence. With attach track

This is similar to [Link Removed] Closed but still reproduces with an attach track. ...

SingleSampleShadowFromStationaryLights does not work in UE5 (when GPU-Scene is used)

The flag is not propagated in FPrimitiveSceneShaderData::FPrimitiveSceneShaderData and so is missing in GPU-Scene primitive data. Need to add: .UseSingleSampleShadowFromStationaryLights(Proxy->UseS ...

Layered blend per bone node with blend mask setting in an animation BP will not work after restarting UE editor, until recompiling the anim BP manually.

[Soundfield Submix] - Output is silent when routing sound to Unreal Ambisonics and then to Resonance

According to the official docs https://docs.unrealengine.com/4.27/en-US/WorkingWithAudio/Nativesoundfield/ an ambisonic submix can be rendered to Resonance or Oculus; however when doing so, while th ...

Gameplay Tags set as Default in Local Variables do not show as references in Reference Viewer

Normal variables with gameplay tag defaults will show up in the reference viewer.Other reference types used as a local variable default value will show up in the reference viewer correctly. ...

Frustum culling provides inconsistent results causing particles to render even when the bounds are out of view.

When the camera is just outside of the box bounds and it is angled directly away from it , it will start rendering the particles again (as determined by stat GPU differences) despite being out of vi ...

SplineMeshComponent resources leak

A race condition occurs in the InitSplineVertexFactory_Internal }}function call, which is distributed across multiple threads. This causes {{FSplineMeshVertexFactory to be instantiated multiple time ...

"Set Animation Mode" creates multiple instances of the AnimBP

Changing the Animation Mode repeatedly creates a new instance of the AnimBP being used every time you switch back to the Animation Blueprint mode. Example Project: [Link Removed] ...

BP Struct's 'Bool variable' will reset back to it's default value on compile

BP Struct's 'Bool variable' will reset back to it's default value on compile. ...

Foliage Painted on BSP is Deleted after Building Geometry

After painting foliage meshes on a BSP surface and rebuilding the level (more specifically the geometry), the meshes are deleted. This bug is especially nasty because you cannot Ctrl+Z after buildi ...