Unreal Engine Issues

Movable point light disappeared by MinScreenRadiusForLights and appeared back looks deemed.

The movable point light is abnormally lit when it disappeared by the setting of r.MinScreenRadiusForLights rather than "Max draw distance" and appears back. After you disable and enable the "Affect ...

URuntimeVirtualTextureComponent::Invalidate does not work with Adaptive virtual textures

LOD streaming requests for distance fields are overridden with additional scene captures.

The distance field scene is shared between scene renders in a given frame. However, LOD requests are not tracked over the entire frame, but per scene render (e.g. camera or scene capture). Thus, if ...

Validate whether the usage of FPIEFixupSerializer can be removed from UWorld::DuplicateWorldForPIE

Welding doesn't work until the first time the actor simulates

Groom shadows stay visible when component is hidden

This appears to happen with both Virtual Shadow Maps and Cascaded Shadow Maps. ...

Unable to input Chinese characters (Microsoft Pinyin) after inputting 34 half-width characters

If we enter Chinese characters using Microsoft Pinyin after entering 34 or more half-width characters in a text field, they are not reflected in the box. If less than 34 characters are entered, Chin ...

Assert in MoviewPipelinePIEExecutor when cancelling movie scenes during rendering

When rendering a single Level Sequence with MRQ, removing the Level Sequence that is actively rendering will create an array out of bounds exception. Also confirmed in //UE5/Main, CL: 36086643 ...

Widget Flickering Observed in RetainerBox with Incorrect LayerId

Setting the Phase Count of a RetainerBox to 2 or more may cause other widgets within the same UserWidget to flicker. Upon investigation, we found that during frames where the flickering occurs, the ...

Inside the ViewportToolBar, the "Click to Expand" ComboButton works incorrectly with Display Scaling

When Display Scaling is applied (e.g., 125%) and the Level Viewport is resized, the ComboButton in the SViewportToolBar does not behave as expected. Normally, the ComboButton hides when there is in ...