Just as an FYI to everyone, especially photographers… I found a bug in the WD Photos app that restricts the ability to view photos in certain folders when some special characters are used. I specifically found this when moving photo projects to a folder in a share on my MyCloud Mirror using the format “yyyy-mm-dd | short description.” When sent to the share like that… I can view without issues on my Macbook and can see the folder name in the mobile apps, but when entering the folder, I get an invalid operation error and the “busy” icon/circle just keeps spinning on the parent folders. As soon as I removed the " | " character, everything worked as normal.
For WD - please correct the bug in the app OR restrict the ability to add the character directly when creating the folder name on the share. I wasted an hour figuring that out because of inconsistency in your programming.