I have been scratching my head trying to solve this. I have a workflow on importing my avatar with pose animation from Blender to Marvelous without a problem for the past couple of months and then when I did a couple of nights a go it kept glitching.
So what happens is that when I import my avatar and play it on animation for simulation the mesh looks out of whack. I've tried a couple of setting on Blender export settings but it doesn't work. I've tried baking the animation it wont work as well. I've tried installing and re-installing the program. It does not work.
Really frustrated about it.