We’ve recently set the following setting in our DefaultEngine.ini:
This is for the sake of performance, since there’s no need to clear anything when we’re using terrain and a sky sphere.
However, when this is set, this seems to affect more than the game – some editor windows don’t clear their backgrounds, including:
-The particle effects preview window
-The blueprint components window
Is this a bug in UE4, or should we be turning off scene-clearing some other way?