I am in the early stages of modelling a robe which has an existing neck hole at the top of it that is supposed to be a fixed size. I have set up a basic test to see how it will react when resting on an object and it seems to do a weird thing on collision where the neck hole widens until the whole robe eventually falls through the sphere I created.
Here are some images of what I'm talking about. These are the cloth and the collision settings:
And here's the problem once it's animated:
To be clear I just want the robe to rest on the sphere object and not fall through it. This also happens when I make the object it's colliding with different shapes such as cubes. Let me know if I can add anything to make it easier to help. It's driving me crazy!