Can't use blend-shapes to modify a skinned mesh with cloth component?

Unity Engine
1

I have a character customization thing set up where I use blend-shapes to modify the body and clothes of the character at run-time. I wanted a particular piece of clothing to have cloth physics applied to it, so I attached the component painted some constraints and the cloth was working. But when I modify the blend shape from script the cloth breaks, the mesh completely disappears leaving my character naked.

1 thing I tried was switching the cloth component off and modifying the blend-shapes, this worked perfectly the blend-shapes were applied correctly, but when I turn the cloth back on the constraints I set previously are all gone and the cloth falls through.

please help

2

Will this ever get an update?
I was also using cloth with a blendshape and it just crashes unity for me.
Making water that deforms.