Looks to me like a few layers of stuck shed to me. Once you get past two or three layers of stuck shed, it gets harder and harder for it to shed off, so it could have just not come off with the last one either.
If you've already tried soaking, then there's a product you could try called Shed Ease (or something to that effect) by ZooMed, it might help remove that spot of stuck shed.
Reply With Quote