In cloth simulation, part of mesh falls on the ground

Development Asset Creation
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1

Hello all,
I was playing around with the cloth simulation and I am having a little issue: some parts of my mesh falls on the ground when simulating cloth.
I used a character from Mixamo. Edited it in blender to assign the bow, the two ribbons and the two rings at the end of the ribbons a different material and imported back to UE4. Then I painted the cloth and simulated. When simulating the two rings fall on the ground. Any ideas?

Here is the link that shows the issue

Thank you!

2

I’ve had this issue several times, and just went back in and removed those bits of the mesh since I couldn’t find the answer. Would love to know how this should be handled.