Most of the time invites just disappear when I click them.
If I’m lucky, I get to Google login.
From there, there are 3 possoble outcomes:
In most cases it just disappears. I may also get “Raid lobby full” (no, it’s not). A few times if I’m very, very lucky I get to join lobby. Works maybe 1/20 times.
Android user. Have tried 4 different devices with same result.
Restarting device and clear data/cache does not help. Neither does inviting only one player at a time to lobby help.
Defeating Mortem Rex is actually the easiest part of the raid.