MyCloud Mirror to MyCloud 4TB Remote Backup Job

I have scoured the current topics and do not think this situation has already been addressed but please direct me if it has.

I have a MyCloud 4TB at one location and a MyCloud Mirror at another. Both are attached and visible in my MyCloud Account. I am attempting to create a backup that will sync one folder from the Mirror device to the 4TB Cloud Device on a weekly basis. When I am in the Mirror device and create a new job it never sees the 4TB device. Is there something I need to do on the 4TB device to allow the Mirror device to sync to it?

Single Bay My cloud cannot be a remote backup target for My Cloud Mirror.
Mirror can remote backup to Mirror, EX, DL or PR model