not sure if i can repeat this, but the nano printer/scanner has on 2 different games caused my pawns pathing to break and turn my game into a sluggish mess.
like after i finally build the printer and scanner, the pawns who are hauling things as they normally do, they will get stuck in place and wig out trying to decide what to haul next. like they will for a split second try to latch onto a new hauling job, but then it will cancel. and that will repeat.
i'm not sure the deal. my guess is maybe something with having a stockpile on the ground in front of the printer (where a normal pawn would work at a workbench sorta thing). if so you should edit the mod so stockpiles and such can't be placed in front of it.
what i witnessed.... so if a bunch of haulers are all trying to take on a job to haul a shirt to the available stockpile spot in front of the printer.. they all wig out. you can see the white dot on the floor appear and disappear (that destination dot you get to let you know where a pawn is headed).
i deleted the printer. i guess i could have deleted the stockpile spot in front of it to see if that fixed it but i didn't.