Hi LDani2001, I have started a new game with Hive Mind and Robot Army installed and did not have an error. I had robot army, hive mind, biter factions, unit control active.
I then started a new game without Biter Factions turned on but the rest on. no error.
I then started a game with Robot Army off, with Hive Mind on, then saved and loaded Robot Army and loaded the save game. no errors.
So my tests conclude that in terms of force handling and error generation, my development build of Robot Army has resolved the error!
hurray!