Something in the patch creation algorithm seems to have been causing this. I noticed that when I applied smoothing in kmax, that part between the torso and the cape would get smoothed, so I rewrote the algorithm in mdledit based on how I wrote it for kmax, and according to my preliminary tests, the issue is gone. The new version is attached.
EDIT: @DarthParametric, I also tried recompiling Visas' head, I think that issue is fixed now too.
mdledit_v1.0.5b.zip