Unreal Engine Issues

Datasmith & mikktspace tangent cause entities to glow with lightmaps

The steps above are reduced to their simplest expression.  I appears that several customers complained about lightmap baking resulting in glowing objects.  This typically happens on interior door fr ...

Crash When Adding a Second Vector Parameter to Material Parameter Collection

The Editor will crash if you add more than one vector parameter to a Material Parameter Collection.  This works as expected in 4.21 CL# 4753647 Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 506 ...

Mobile projects crash with Event Driven Loader disabled

iOS + Android apps will crash on launch if Event Driven Loader is disabled. Confirmed in 4.23 MAIN at CL 5035898 ...

Nearest Filtering on Vulkan doesn't work on some kinds of Android Devices

The licensee reported "Nearest" filtering on Vulkan doesn't work on some kinds of Android devices.[Link Removed] I was able to repro this issue on Pixel3 but wasn't able to repro it on Xperia X Per ...

Failure to sign when packaging for iOS Distribution when using Remote Compile from a code project on Windows

Packaging for iOS Distribution from Windows using Remote Compile results in a failure during the signing portion. This seems to be caused by a hardcoded "false" for a property that is used to determ ...

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game

Performance issues when a Render target is added to Spectator screen (VR) in a packaged game ...

Rotating constraints in PhAT rotates both reference frames

Rotating constraints in PhAT rotates both reference frames. This behavior was previously enabled by holding ALT while rotating, as indicated by an on screen message in PhAT, but has now become the d ...

Importing through Python fails

Version 4.21:The script result in popping the Alembic Import windows instead of a silent importThe provided options are ignored by the importer.  Version 4.22: Results in the provided callstack wi ...

Moving widgets sends them to the bottom of the widget hierarchy in the designer tab

Static Mesh LOD Generation Produces Bad Shading and Holes in Mesh

Auto generated LODs create a mesh with holes and geometry that creates incorrect shading. Working as expected in 4.21 CL# 4753647 Found in 4.22 Preview 2 CL# 5035897 and 4.23 CL# 5064136 This is ...