Quote - Top of dress conforming, hip clothfied.  Hip completely constrained

 

Out of interest, what happens when you run the simulation without any constrained group? (Go to one of the Edit options---doesn't matter which---, select the "default" group from the dropdown list, press Add All.) I'm not saying this is necessarily the problem you're having here, but it's something worth trying. And I'd like to see the results anyway, no matter what happens!