Any of the V4 FBMs seem to cause it, most especially the elite morphs, they appear to be the worst offenders.  A big reason I wanted it was for the support for the elite morphs, especially fantasia (curvy is awesome).  I own several other items from this vendor and none of their other clothing seems to have this problem.  Heck, I always found their stuff easier than normal to use.

Thanks for confirming it isn't just me that is having issues with the possessed skirt though.