Darren
Okay so it appears there was an issue with the web version of the viewer, that should now be resolved and people can now use tat as before, the mobile app should of always worked we ad several people test it and it appeared to be fine there.
If your league host agrees to request a rerun there is a thread specifically for this
I did post a re-run request.
In our league, nobody could join not with the app and not even with the web browser. It appears other people are having the same troubles as I can see from comments in Jack's thread in the Announcements section.