A whole bunch of graphics got updated and VLC can be picky. By the way, there's a discussion about this "Partial Upgrade" over here but this is the first non-updater result I've heard.
I can offer a popular way to resolve such VLC issues by setting the "Ouput" mode. Remember what it was originally and try one at a time. It may start working better than ever.
And here's another pain. I think for settings to take affect VLC has to be closed and reopened.
I'd wager this may do the trick but please let us know?