Hi,
Managed to shoot myself in the foot. Recently installed solid Explorer, tried to "hide" book covers from Photos on my Shield Tablet & all the photos in the Photos collection disappeared. There is nothing in hidden folders.
I uninstalled reinstalled. I used a restore from my Moto E4. Nothing brings back the photo collection.
The inbuilt photo viewer suddenly does not work either- maybe that will help with troubleshooting?

What can I do?
Help!!
Thanks in advance,
Hope Robert