No Server or FTP directory

This issue is a duplicate of this one: Private file destination not working, no schedule option ...??? You will see instructions for a manual fix for this at the duplicate issue, but I am leaving the status as "needs work" since it is possible this may still be a problem with the current code. Can you clarify which dev version you were using? A May 9, 2017, dev version fixed a lot of bugs but has been pulled from the main page in preparation for a new, stable D8 release coming soon. Please watch for the new release and see if it fixes this issue.

I'll write a tutorial for setting it up from fresh as this is a duplication will close it now.

Active issue is here: #2919295: [META] Backup to external destinations (D8)