Unreal Engine Issues

Foliage Lightmaps are incorrect when using a Lighting Scenario and running as standalone

4.23 UpdateGrass took twice time than 4.22

NavModifierVolume's FailsafeExtent is applied to the wrong area

The FailsafeArea of NavModifierVolume is generated at a different location from the center of the actor when it rotated. This means that the effect of rotation is incorrect. (see attached file) W ...

Editor crash when drag and drop the Image widget in a NamedSlot on the designer

When first added as a child widget in NamedSlot, the child widget can be dragged and dropped onto the parent widget's designer. The following assert causes a crash. Assertion failed: ParentWidget ! ...

MoviePipeline skipped frames using Temporal Subsampling + Time Dilation

The frame appears to be getting skipped entirely, but the timing for the frames on either side of them is correct, ie: if frame 10 is skipped, frame 9 and 11 still match the working case, so the ove ...

FFT corruption in bloom from sampling outside of viewport

Licensee has suggested a fix: "Switching to >= resolves the problem: in GPUFastFourierTransform2DCore.ush, `bool InWindow = ...` at lines 127, 144, 170, and 185." ...

HDR is washed out or broken across multiple platforms

Default HDR images look incorrect for different reasons on each platform: PC SDR:[Image Removed] PC HDR:[Image Removed] ...

If Material is not overridden, Material will not be exported correctly.

This is because FFbxExporter::ExportStaticMeshToFbx() does not correctly determine the OverrideMaterials.  Therefore, the following code will not pass.else { Material = StaticMesh->GetMaterial(P ...

MipLevel sample mode doesn't work as expected in Adaptive RVT

When StaticMeshComponent is added to an empty Actor, no HLOD is generated.

When a Cube of StaticMeshActor is placed, it is generated without any problem. ...