Thanks for trying it out!
It worked for me with: https://xhamster.com/videos/jill-valentine-handjob-sfm-14072025.
I haven’t tested it on firmware 3 yet, have you upgraded to it?
Also, I realized that the source url for videos on many sites streaming sites, including xHamster, changes over time. So I think that could be causing some of the other issues you are having.
Could you try it with a video on redgifs and see if you have the same issues there?