When I hit full screen on Maschine 3.11 its a fixed window only about two thirds of the screen size. Is this because I have scaling on or a bug?
It hasn't been fixed yet but should come soon, most probably in the next Maschine 3 update.
It has happened since the first release and hasn't been fixed, yes it is caused by scaling, however Maschine 2 does not do it with scaling enabled, so personally I would say it is a bug, and really does need fixing.