Mac and WD Discovery

Just bought my cloud home. WD Discovery installed on Macbook Air. Can’t move or copy files to WD Discovery. The My cloud air works with my Windows PC, iPhones and via Safari.

But, simply not working with the so called Mac App. Wasted hours on it.

You should try in the MCH forum… There’s been a lot of disappointment about this device, especially on macOS.
Did you log in with Discovery?