Just started recently, possibly with the last update. When I try and copy or move a file to my D drive, where I keep all my files, I get this error. Even just trying to create a new folder presents the same error and it appesrs i'm not able to do anything.
Using FIle Explorer in the same location works fine.
I've noticed that I don't have the issue on the root of D drive but as soon as I go into the users folder i'm no longer able to perform file operations using Directory Opus.
The Users folder would normally be on the C drive. How have you moved it? That might be key.
It could also be something outside of Opus changing, if it was working in Opus 13 before but no longer is. E.g. Antivirus might be blocking Opus from touching anything below the Users folder on that drive.