Ovoid mind switch gone wrong When they asked Reed Richards for help, he was initially unable to aid with the situation, but, after remembering his own experience with the Ovoid mind switch, he realized the problem was that Louise was unconsciously unwilling to give up her new form.
For a long time, She-Hulk could not revert to her original human form, but that turned out to be psychosomatic due to her not actually wanting to.
After taking care of the unusual case with Louise, the two were reinstated at the office as if they'd never left.