After opening X amount of videos at a time (could be 10, could be 50), the next time I open a video, it'll open the player but just show the black screen with the VLC logo.
If I sign out of Windows 10 and sign back in (or reboot), it works again.
I've found this is because at some point a video doesn't close properly, so the logo will still be in my taskbar after closing. Right clicking it and trying to exit it that way does nothing to it. I can end the process to get rid of it in the taskbar, but then try to open another video, I get the same thing. Resetting preferences, cache, updating, reinstalling doesn't work. Videos will still work in other players like Windows Media Player.