Sharp edges lost in FBX export from Marvelous Designer to Blender

[yuri-g]

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