I don't know how to describe this, but i noticed a few bumps under the skin of a deer that I tanned with Krowtan. These bumps do show up through the skin of a summer deer that I have already mounted. It is also on the skin side of a hide I tanned for antler mounts. The hair is not slipping, and the bumps only showed up after several weeks and the hide is completely dry. Can any one help me with what causes this? And if so, will this cause problems down the road? The bumps are very small and probably won't be noticeable on a deer with normal length hair. Thanks for any suggestions.