Navigating various dropdown menus in the Editor causes the FPS to drop down to around 25 or 10 in the Viewport on an empty project.
This does not reproduce on Windows with -vulkan
This issues was reported and tested in 4.22 (CL-5660361). This was reproduced in 4.21.2 (CL-4753647) and Main 4.23 (CL-6032622).
Results:FPS drops to low/red numbers
Expected:FPS doesn't change
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-73146 in the post.