Im writing about this problem in steam forum:
https://steamcommunity.com/app/392110/discussions/0/2847921219528419684/
When in game I play with enemy Craver i recieve ungameable bug. In mid or end game Cravers recieve from questline system, named "Endless factory/fabric". When i occupy all Craver system, the last one (Endless factory/fabric) can't occupy or destroy planet. With this bug, i can't end the match.
https://steamcommunity.com/sharedfiles/filedetails/?id=2241894510
I don't use mods. Only DLC.
Any idea how fix it?