Window list moves the overview dash up by the height of the window list bar
When the window list is enabled, the dash with the favourite apps/open windows (in the overview) is moved up by the height of the window list bar. This also causes some overlap between overview elements on small screens (1366x768).
By the way, sorry if this is not the correct way or place to reports bugs. I've never reported a bug before, so I'm not sure how it's done.