I made an armature and connected it so a stick figure I made. The issue I'm running into is when I bend the knees of the armature. The upper thighs of the figure begin to cave in, and a line appears in the hip area. This is an issue I've had for a while that I normally fix with sculpting, but I'd like a more permanent solution.
I've tried editing the weight paint of the hip area and the legs, but can't seem to find a fix. Any advice or links to a video on this topic would be appreciated. Thanks