Right-click disabled, toolbar hidden in fullscreen mode

[bobazonski]

The issue occurs exactly as described in the Subject. I have checked other threads with the same issue, but the solutions don't work. (I have made sure the toolbar coordinates are within my screen area)

If I look closely just as entering fullscreen mode, I see the toolbar where it's supposed to be flash for a fraction of a second before disappearing, as if it's hidden BEHIND the video I'm watching. When the issue occurs, I'm also required to hit the Esc key TWICE to leave fullscreen mode, rather than just once.

The issue only seems to occur in some (which ones seem random, but if I have a set of videos, from the Internet for example, it will apply to all of them, so it must have something to do with the codec or encoding program used) 720x1280 or 1080x1920 HD videos, and I can get it to stop occurring by cropping the video to 1.85:1 (or some other aspect ratio besides the original), but then I have the vertical or horizontal black bars, of course. With a standard definition video or with a crop applied, the toolbar and right-click function as normal, with an appearing-then-fading toolbar and a right-click menu.

I have yet to figure out if there is one particular thing causing this: I have always had it happen when watching MKV videos, but I don't use enough other file types to definitively say that it occurs ONLY with MKVs.