[CO-OP ISSUES, WORKING ON A FIX] Selecting battle in a party freezes game for 20 minutes

Platform, device and operation system
Samsung S10 5G

What were you expecting to happen, and what actually happened
I was in a party with another player. I then selected Portal of Blood, difficulty X dungeon. When I exit out of the battle selection screen, I get an infinite spinner in the bottom right hand corner. The game is then entirely frozen and I’m unable to take any action.

This happens fairly often (I’d say once every 3 or 4 times I host a party).

Force quitting and restarting the game always results in the following screen after the game loads and logs into my account:

When I encounter this “brown table of death” screen, I’m unable to do anything (i.e. the game is completely frozen).

I have tried everything to restore the game to a working state: deleted cache, deleted data, uninstall and reinstall the game, download partial and full upon reinstall, restore my account upon reinstall, use new account upon reinstall and then restore my account.

Nothing works client side. Only time seems to fix the issue. After waiting about 20 minutes, my account will go back to normal.

How often does this happen? When did it begin happening?
See above.

Steps to make it happen again
Invite player from friends just to join party.
Select Portal of Blood dungeon and max out difficulty.
Intermittently, see the infinite spinner in bottom right hand corner and notice game is frozen.
Force quit and restart game.
Notice weird brown table view, and that game is still in frozen state.
Wait about 20 mins.
Force quit and restart game.
Notice game is back to normal.

We are working on some co-op issues, so when we release these fixes hopefully that will also resolve this issue.