Quick backstory, I currently have two monitors connected via DisplayPort, one is oriented horizontally and one vertically...don't judge, I just like this layout more, and it's more comfortable when I work/game etc..

Anyway, when I want to change the position of the Opera window, from my horizontal mounted monitor (full-screen) to my vertical monitor (full-screen), it seems to be crashing, maybe it's only an issue with YouTube, I haven't tried other tabs yet. The only way to resolve this issue is by re-starting opera in Full-screen on my main monitor (horizontally mounted). Maybe its just user error, which I doubt....a lot.....