A lot more model rippers are using newer versions of XNALara/XPS for their model rips, and those models often aren't compatible with the last available version of XPS Tools/XNALaraMesh for Blender 2.79.
Unfortunately, io_thps_scene isn't compatible with Blender 2.80+ either, leaving us in kind of a standstill in terms of porting models. Is this going to be addressed in the near future?