Originally Posted by
Metzinger
My bet is that you still have a bent-in hanger. I've experienced this a lot with mountain bike crashes on aluminum frames. That is, that the part of the frame where the hanger attaches is a bit bent, and still needs to be bent out. The bike shop has a tool that can realign this properly.
The hanger is a brand new one, was replaced after the crash. If anything should be bent, it should be the derailleur.