Originally Posted by Mindrunner

Has anyone had this before? That some of your allies total power drops alot, because their first team loses 5 or 10 levels?

Total power in the ally list, or for their helper squad when you are assembling your team?
If its the helper squad, and its the same girls, you have to remember that your helper squad is level-capped at the highest level girl you have in the team. If you swapped something around and pulled a high level girl and swapped her for something lower level (even if more powerful) you may have triggered this.