The Problem While performing an instance migration this spring, I happened upon something I didn’t expect in [dbatools](https://dbatools.io/). It should have been a simple backup/restore copy of the databases, with the backup files residing on a fileshare on the destination server after being copied there. I kept getting a warning that the backup files I was attempting to restore couldn’t be read, and the restores (via Restore-DbaDatabase) wouldn’t execute.
I checked permissions on the server over and over again.