Problem with cloth simulating just part of it.

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Viz the attached image, the whole lower part of the cloth has the same particle properties yet only the small par seems to be getting simulated for some reason. All the rest is just stiff and moving as a group together.

What could be the issue here? Does seem like there is a limit of particles. I don't even care that it is getting through the mesh I just want to get it simulated first.