Cloth Simulation Sewing Issues

Hi,

I’m trying to make a loose shirt around a character but am having difficulties with the cloth simulation. It seems to try to sew together but slips over the shoulder before connecting.

This is my first time using this feature so any advice would be helpful.

I’ve attached a link to the render of the simulation.

Also, here is the simulation settings for the cloth.

All other objects are given collision.

Uh, that looks like the collision handling failed seriously, making the sim explode completely. Does it work when sewing is disabled? Also which version of Blender are you on? If you could share the blend file, I can take a look. This way it would be easier to diagnose.