i dunno if it stays on but i deleted the box where you select which player you are making the unit for.
so the box was empty an i put down a unit, i was expecting a crash fo soem sort, but no, it stayed there, the color of p12 i belive. but when i selected ti it turned into player 256.
EDIT: when you relaod the map, it turns back into p256.
Players can only have an index of 0-255. Index 0 is player 1, etc. If you clear the box it will probably interpret that as 0. When the unit gets placed, 1 is subtracted from the number in the box. This would result in a value of -1, which is 0xFF in hex. If you read this value as unsigned, you get 255. A 1 gets added to this whenever you see it in Starforge, so you see it as player 256. There's no difference from what you did and setting the owner to 256.
ok then. just makinf sure. didnt want to crash my comp.