Unreal Engine Issues

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 ...

Generate Project Files is not automatically run after Switch Unreal Engine Version on Mac

When converting a project to a different version of the engine, the GenerateProjectFiles.command process is not ran as it would be on Windows with GenerateProjectFiles.bat. This can cause issues, es ...

Crash when naming function parameter 'none'

Naming a parameter "none" will cause crash on compile. Asset may not be able to be reopened. Also confirmed in Main CL 4309299 ...

Crash when reopening a project that has a Child Actor component in a BP with a WaterBody class set as the Parent Class

When adding a child actor component to a Blueprint with the Parent Class set to one of the new Water classes and then placing it in the world, the project will crash on open. This was tested with th ...

Planar reflections do not work in OpenGL4

This is not a regression as it occurs in 4.16.2 The test case was just recently updated to test for planar reflections so not sure if this is intended to work or not. ...

Expose input action from enhanced input component delegates

From a delegate there is no easy way to access the action that triggered the delegate. Whilst this is mostly inherent (an OnJumped handler implies the Jump action) it would be better to provide dire ...

Memory leak in Array draghandles in PropertyEditorHelpers.cpp

CustomPrimitiveData is not updated for Niagara if it's paused on DX12

Crash when playing with Vulkan Mobile Preview

Occasionally getting a crash when playing with Vulkan Mobile Preview. Have not had it repro 100% of the time. ...

4K Resolution and High DPI Scaling in Linux aren't completely affected by System Display Scaling

Unreal doesn't change appearance when changing system configuration display scaling options. Editor Texts are still quite small and don't change based on the Display Scaling %. This bug also causes ...