I have attempted to change the weight painting, and I have tried searching through forums, but I have been unable to find any solution to this problem yet.
might be caused because you have a low poly figure with (high?) subdivision. The subdevision performs a smooth over the low poly figure. creating artifacts.
- copy your blend file, apply subdiv, then do another autoweights with bones.
Its always is a bit tricky but it might look better. Sometimes people add extra bonus just to keep things stable, (ea rigify feed solution).. placing of the bones is essential