diffeo simulation tool, softbody + cloth will occur distortion
I easy import a G9 character, add some facs morph and jCMs. if I only add softbody or make cloth simulation respectively, softbody effect or cloth simulation works well. If I both add two simulations, cloth simulation seem nice but the figure's chest will appear distorted. use Diffeo 4.2.1 and blender 4.0

Comments
Yes there's some confusion with collisions, now reported to Thomas.
https://bitbucket.org/Diffeomorphic/import_daz/issues/2295/
update. This is fixed in the last commit.
https://bitbucket.org/Diffeomorphic/import_daz/downloads/