Squad invites don't always work

[.mrugacz]

Description:
When inviting friends to lobby game fails to deliver invites (a lot), it seems like game session is not updated correctly (in activity it sometimes shows status with a high delay - 2 or 3 missions back). Sometimes switching session mode on either end (host/connecting client) fixes it other times not. Same issue affects joining player's lobby.
It's definitely not a network issue on our ends - once we connect there are no more connection issues. We disabled cross-play (all 3 of us are on PC) - no change.
Current workaround is inviting each other until someone manages to successfully join a session.

How to reproduce:
- invite a player

Build:
Not applicable

Squad:
Not applicable

Crash Report:
Not applicable