swiftfoxmark2

I've had a persistent problem that I can't seem to identify. Basically, when an NPC is decapitated, you can see right through the body. There's no neck gore or anything. I've tried different mesh or textures to try and resolve this but nothing seems to be working. Does anyone have any ideas? Has anyone encountered this issue before? Screenshot: https://ibb.co/N1TQH3d Here's my modlist (CSV file): https://pastebin.com/MXGcaUCk