Upon further investigation I think this was created, somehow, by StableBit Scanner. When it detected the damaged drive I had it attempt to recover files and the export folder for those was to be the root of E:\Public, but for some reason it may have made an entirely new drivepool. No idea how or why. It didn't put them in E:\Public but created D:\Public.
It does appear the two drives should have the same contents but they don't:
DrivePool(D:) only actually has 7 files totaling 231 GB, which are the 7 files that were restored during the StableBit operation. There are no h