Don't know for shure, but I think it is the same problem as in Skyrim LE,SE and Fallout3, New Vegas.
You have to open the Bodyslide armor mesh in Nifskope and have to go for every part of the armor to "..DismemberSkinInstance". There is a Line "Partitions". klick on it and go to "Body Part" and change it according to your choice in Xedit. I do not kow if 41 (long hair) is working. you have to try out. After that use Bodyslide again.
Good luck
Harvald