I fixed it by re-initializing the WD MyCloud, removing/reinstalling the Android WD Photos app and then setting up the app with a small number of photos of the WD MyCloud (i.e. like 12 photos). Then, I was able to get through the setup process.
I’ve stopped using the WD MyCloud for my documents (I have LOTS of documents with included images) and use it only for music and photos.
Good luck… you will need it with this device.
