I had no problems in V81. To this day however, I cannot get people to wear armor. And the wretched Piper quest is still non functional.
It’s Bethesda’s traditional way to provide each player with a unique wasteland experience ;)
Getting people to wear armor is easy. Trade with them (not barter, trade) then the T key to make them use either the weapon or the armor. In order to keep it simple I have companions use full cage-armor sets. Then I don’t have to assign each leg and arm and so on.
My Piper quest went just fine. Vault 81 is scrogged. If you refuse the tour from the kid, it’s broken, the forums say.