Sharp edges lost in FBX export from Marvelous Designer to Blender


I’ve change some setting and now the exported FBX file does not contain any sharp edges when opened in blender.
There are no blue lines but when I click Select>Select Sharp Edges blender highlights some uneven lines. The previous version of the file I exported from Marvelous contained sharp edges exactly where the stitches were.
No it is all gone. And when I try to export the model as an OBJ file it wont even import to blender - there is an error