Unreal Engine Issues

Crash when setting Anim to "None" with URO

A Crash can occur when setting a skeletal mesh's animation instance to None when it has Update Rate Optimizations enabled. An unverified proposed fix for this is to remove the nullptr check when ...

Umask ignored on Linux

UE4 is hardcoded to use 755 for files and directories. See mkdir() in Engine/Source/Runtime/Core/Private/Unix/UnixPlatformFile.cpp This is also repeated for Android, HTML5, and Lumin but i cannot c ...

Screenshots Comparison Tests with different partitions.

The logs says: - AutomationFunctionLibrary: Screenshot captured as D:/xx/L_Test_Screenshots_outlined/Windows/D3D11_SM5/2dd1ddbfed537136cba0ef30863412f1.png - New Screenshot 'xx' was discovered! Plea ...

Using "Collapse to Function" in a const blueprint (such as an anim notify) does not flag the function as const, resulting in a compile error

You can manually open up the graph settings for the function and check const there, but we should either auto-set const when the function is created, or imply const for all user added functions in a ...

Reimport Skeletal Mesh break Morph Targets if you have Active Reduction on base LOD

Dithered LOD Transition does not work on some mobile devices

I tested with some mobile devices and Dithered LOD Transition did not work on Huawei P20 Pro. This problem does not occur with Snapdragon. This problem does not occur with Snapdragon like Pixel 3. ...

Can't add a subsequence binding for a camera cut through sequencer scripting

Spot Lights don't work on Magic Leap if Cast Shadows is disabled.

Spot lights don't work at all with Cast Shadows disabled on the Magic Leap. Cast Shadows must but enabled even though they don't work. This can also be demonstrated in the Vulcan render preview in ...

The mobile preview in editor gets much darker after open the StaticMeshEditor

Blend Graph can trigger ensure Bone.IsRotationNormalized()

Using a custom Blend Graph can trigger the ensure Bone.IsRotationNormalized() when source pose is connected to output. ...