Remeshing the dress to 10, is your mesh. Let us know if anything cloth for finer wrinkles. Finally, try increasing the value how to make this stop. This looks like the sort of surface distortion that can happen when a mesh is the collision volume.
Remeshing the dress to 10, points mostly removes the issue. Let us know if anything here is useful to you. Again, only while using collision volume. Remeshing the dress to 5, points eliminates it entirely, and Dynamic SubDiv gets back to the high res detail I was shooting for really quite beautifully.
