I've never gotten the fitting room to work if the figure you're fitting to isn't zeroed. I don't think it's the problem, but you don't need to convert the figure to a prop before going into the fitting room. I'm not sure which pants you're using. I tested with baggy jeans from James and didn't have bunching. I got the best results when I didn't use the auto group option. And also I zeroed out Tyler's morph so the geometry was the generic Ryan shape. I find I usually get better results when there are no morphs active either.

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