Albert, support had me do a SYSTEM ONLY factory restore.
Keep in mind, this will blow away all your users & settings, but your shares will remain.
You’ll have to recreate all your users… here is where to use caution.
When creating new users, WD Mycloud by default creates a share for that user. After I recreated my users I wanted to go to Shares and remove the newly created shares. I clicked on the share I wanted to delete and clicked delete.
But the new UI interface is so SLOW, that I realized when the page refreshed, I actually DELETED my Data share.
Support is clueless in trying to help me recover. They said, “use a safe point” but all the safepoints were gone because of the system only restore. Luckily all the data was still on the USB attached drive. At that point, support was lost and could not help. They also could not tell me the Event ID with the failed safepoint messages meant. They also said they were going to escalate my case and I NEVER got a call back.
I created a new Data Share and used a 3rd party app called ViceVersa to replicate all the data (data structure and time stamps) back to the WD Share.
Long story short… I got all my data back and now my safepoints complete just fine.
Because I do not trust WD or WD Mycloud, I signed up for SOS On-Line Backup which can backup a mapped network drive (mycloud). It takes a bit to setup, you first have to unmap your mycloud, do a reboot, then install the software and SOS has to map the mycloud share then start the backup. Once it starts you can manually remap the mycloud drive to your pc.
So now I have safepoints (local) and a daily on-line, encrypted backup through SOS.
hope all this helps… because WD Support couldn’t! 
