New User - Cloud Drive Sync duplicating entire Drive in Subfolder

Hello,

New NAS user. Have a DH4300 Plus. Set up fine, updated to latest firmware.

I created a Cloud Drive to move towards eventually getting rid of OneDrive. Downloaded OneDrive (about 256 GB only). That took a day and a half but was done. Tried setting up a two way sync, but, it appears that in each direction a new folder was created under the existing drives on both the cloud and the NAS called OneDrive that was redownloading the entire file structure and files from the One Drive. Again in both directions.

Not sure what I did wrong, or best way to fix. I stopped the sync because it was serving no good purpose. In the overnight hours and part of the morning I ended up with over 100GB of duplicated files in both the cloud drive and OneDrive online.

Any input on best was to straighten this out apprecaited.