I was disappointed to find this area of missing bark on my young yellowwood tree (Cladrastis kentukea). It seems healthy otherwise and the bark is trying to close the gap. Better to do something now while it's young, but I really do hope to keep the tree. About a year ago I realized there was a bad girdling root, so I spent the day carefully excavating/pruning/ and untangling it. That was in late winter and I'm pretty sure I didn't damage the trunk. It leafed out fine in the spring. The trunk still feels solid despite the cracks, and I pulled back the dead part for the photo. Are yellowwoods known for this, and is there a chance it'll be ok?