I'm having a very specific problem with my model that only happens when exporting to VSF format and all of this is so new I can't find any support on the issue My model has ankle frills that are an fbx made for me by a modeler pal, I know how to attach them and add spring bones and all of that works fine in VRM.

Exporting into VSFAvatar format while having springbones makes it do this??? I've exhausted my knowledge on this and my friend who's a pro has no internet till after my Anniversary week and I've been trying to get a new outfit ready.