[2021] Game loggs me out of my paradox acc when my friends join my MP lobby.

This has been an issue since game release, see here for instance:

MULTIPLAYER LOGGING OUT ISSUE PERSISTS.

Hello, I found out that host getting logged out issue still persists despite 1.2 patch. Me and my gf played a multiplayer session in hoping for it to be worked after 1.2. We launched the game and firstly played only roughly 3mins to see if... forum.paradoxplaza.com
Hopefully it can be addressed in the next patch.

Sorry about that!  

MrRory said: Crazy that this is still an issue.
Cannot play with friends because of this.

Have you tried the 1.3.2 beta?