Hello!
I sort of had the same problem.
It happened to me a while ago, that I couldn't get into fullscreen mode - or any other resize function for that matter. I had to manually resize the window, and i'd still had all those bars. On top and the bottom and everything.
Very annoying. Rebooting MacBook didn't help, and restarting the application didn't either (did that before of course). Somehow after a while, without me doing anything everything was okay again.
Just now I had the same problem occuring again, and I didn't do anything to trigger the problem... I did download a subtitle with VLCsub thing, but the previous time i didn't do that and it happened too, so I don't think that was the cause.
Anyhow, I fixed it by resetting my settings to default.
Maybe it'll help for you too! If your problem isn't fixed yet that is.
Good luck!
