whiskers54
But I don't have any mods and I was losing parts off of the stored Power armor.
The cell reset will do more than remove pieces from your armor. It will take for example; a T-51 suit and reset it to a T-45 suit. Or an empty T-45 frame and then put some or all of the armor pieces back onto the frame. That's what was happening to me.
In your case Whiskers, I think we're looking at straight up theft. Either Zuhl has been hanging with your ladies and coerced them into a life of crime, or your settlers are pulling pieces off of your armor.