Hi, I was playing a multiplayer game with a friend on the local network when a popup message appeared on both machines.
After that, my friend could semi-navigate the star map but couldn't play it.
So, we saved the game and started a new local game using the save game, which worked.
We got the message again, but the game was playable after that.
Maybe not much, sorry for that, as I can't remember what we both did just prior to the bug report.