I've been experiencing this bug since the first beta but it still hasn't been fixed or even acknowledged. Has anyone else encountered it?
When playing 2v2 co-op vs AI, some weapons get replaced by a "01_01 Doesn't Exist" weapon (that obviously is useless in battle). In my limited testing it seems to only affect the player who isn't the host, but my friend and I have both experienced the bug. Necron ships end up with no weapons; some other factions (like Tau) lose some but not all weapons.