Same issue, … it fixes if I leave one of the windows (ie outliner) visible but in floatable windows mode… and do not minimize, it is very annoing but it works for me, also ( as somebody mentioned above) works if you use the editor in windows mode, not full screen (no need to have the outliner open in wondow floatable mode) … gygabyte radeon 6600 eagle, core i5 32G ram