with most of the title and video cut off. I then have to reload the page until it doesn’t do it anymore. I’ve only experienced this with videos I opened form my Watch Later but that’s where I open most videos from. Still, it could have something to do with the index and timestamp parts added to the URL even though they’re still present the times that the video goes fullscreen fine (for the above example, https://www.youtube.com/watch?v=1NEKticF2vY&list=WL&index=3&t=366s ). I’ve never had this issue in Chrome.
Can you try disabling Hardware Acceleration in settings to see if this resolves the issue?
You’ll find this in Settings --> Additional Settings --> System --> Hardware Acceleration
Also, if that doesn’t help, can you try creating a new test profile and seeing if the issue persists?
Click on the menu icon in the top right corner > create a new profile.
Can you try disabling all of your extensions? If that solves the problem, the next steps would be to enable each extension one by one, and seeing which one causes the issue.
I disabled all of my extensions, switched back to my youtube tab, opened a video in a new tab, switched to that tab, double clicked the youtube video to go fullscreen, and it did it again. So it seems it’s not due to any extensions.
I’m on Windows 10 2004. I’m not sure if I quit and restarted. The issue crops up with such inconsistency that it makes this kind of A/B testing difficult.