(Yes you have seen this name before, I was just here asking some units moved on their own) I've played a lot of Civ, but not in awhile, rarely 6, and not since it was a new game. So my new problem: The builders aren't just wander away, their disappearing all together?! Where are they going.

Builders in Civ 6 have a set number of charges (number can be affected various governors, policies, etc.), once they have been used up the builder disappears.