[quote]After updating, every fireteam that pops up in fireteams is closed/full when I select it.[/quote] I had that happen last night -- the website worked, but in the app everything showed closed, and it couldn't join any fireteams. I just deleted and reinstalled the app, and now it looks like it's working again. It might be enough to clear the app's storage; but either way, after logging back in I can now see the option to join.