Im not sure what happened but everyone has a different gamepass except the US now. NFL decided to sell all the international licenses or something I guess. We got switched to the DAZN app here in Canada, and I know my buddy in Germany has it too (hence my asking if you guys got switched to it as well). Its like a Netflix subscription but for live streaming sports. Seems like a great idea but its been brutal so far. Even when it works the audio has been a good 5 seconds off of the video. Plus has the same issues crashing that you mentioned with your GamepassEU, as well as the lack of real support. Worst part is that we cant even get NFL Sunday Ticket or the NFL Network through cable anymore either, so we are stuck with this app or semi-illegal streams.
Sucks to hear that other platforms arent doing well either (especially one with the actual Gamepass name attached to it).
Hopefully they all get it figured out, cuz its looking to be a rough time for everyone involved if this keeps up.