Unreal Engine Issues

Blending does not work when materials using material layers are set to Post Process Volume

Blending does not work as intended when Material Layers are used in post process. ...

Widget's shear render transform isn't reversed when using RTL text flow

When a widget's flow preference is set to RTL, we adjust the render transform so that the horizontal transform is mirrored (see SWidget::GetRenderTransformWithRespectToFlowDirection). We should do t ...

Using the "Keep World" scale rule can result in incorrect relative location when attaching actors

This seems to happen due to a precision error when calculating the relative transform between the socket and the component being attached. Occasionally, one of the transforms will have a scale of (0 ...

STAT_VolumetricLightmapBuildData is not counted correctly

STAT_VolumetricLightmapBuildData isn't counted correctly. It seems that the root cause is Volume.IndirectionTexture.DataSize is set to 0 before STAT_VolumetricLightmapBuildData is decreased.// Prec ...

AMD GPU crash with "Video memory has been exhausted" error when increasing the World Partition world and using Water Body Ocean

Current steps describe the problem related to "Video memory has been exhausted (#### MB over budget). Expect extremely poor performance" on the AMD video card. In this case, the steps cause the GPU ...

Custom Node interprets MaterialAttributes inputs as float3

It seems that the Material Editor's Custom nodes don't handle inputs of type FMaterialAttributes correctly, and instead interpret them as float3. Using Material Attributes as an input to a Custom E ...

[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 ...

Game View renders Lights with Actor Hidden In Game enabled

This is not a regression. Tested in both 4.27.2 and //UE5/Release-5.0 CL20979098 Game View renders Lights with Actor Hidden In Game enabled. Documentation states: "...the Viewport to display the sc ...

Static Lighting Breaks after Re-opening Levels Containing Level Instances.

Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 Web Browsers widget components stop accepting input when toggling visibility with a delay if there is more than 5 browsers. This onl ...