seems that some device information is broken, happened to some of my testing units in the same way.
Cycle to c:\windows\system32\DriverStore\FileRepository and then scroll down to letter P; you should find a folder with the name “pnpxnas-mycloud.inf_amd64_neutral_ …”. Open this folder and doubleclick the .INF file to reinstall it. You may need a reboot.
Or, other way, open the device manager. Normally, all kind of our My Cloud devices appear at the end as “Western Digital NAS” in its own category, and all My Clouds appear with their name. In your case I think the My Cloud will be listed as “Digital Media device” somewhere at the top of the device list and not as My Cloud but something else, twice. Click on the corresponding Digital Media device, click “update driver”, then choose local on your PC and then point to down the directory tree shown above. You should do it twice for each single device. Then the icon will reappear.