@piotrlotr1
I think my original mini-lab did this, I had mistakenly joined these hosts to the big lab pool, found out is was wrong and detached them to make a mini-lab pool. There were some oddities when I did this, but I just worked past them and created their own pool and did my warm migrations. Wish I had taken better notes of this when I did it.
I wiped and rebuilt my mini-lab now, so no going back.