HI!I recently bought cc3 and I am happy with it.
I mainly use it for Daz characters.
Sometimes it works perfectly and other times it requires more work, speccially the weight painting.
I am having a problem with the following pant model:

I Tried to smooth the weight paint and smooth the mesh in that area.
Also try to paint it manually.
The problem is that if I correct for a certain pose, it breaks for others.And the mesh starts to freak out in the paint process, making the process really frustrating.
Can someone recommend me what to do in these cases?
Any advice/ recomendations?
Thank you