I have downloaded a model from http://www.blendswap.com/blends/view/73788 and created run cycle for it, but certain bones stretch in unexpected ways.
Here is my modified blend file:
To debug this i created a simple pose “Armature Action”. See the pic below.
As you can see, the leg is strangely distorted. I checked the rig with Skeleton Debugger lots of times, however the bones move as they should, just the mesh does not. I also reset the vertex groups, yet it didn’t change this behavior.
Thanks for your help