Infinite loading screen when joining another player's monolith

Bug Reports
#1

I tried to help another player with mono boss, he invited me to the party, I used portal to player, entered it and loading screen was infinite, waited for a couple minutes, had to alt+f4

I dont see a file upload function for logs, I did this: https://file.io/LdP2tALQD9to

#2

Update: launched the game again, asked for invite, tried to join, same bug, stuck in loading screen.