When moving photos from gallery to an album, they aren't deleting off gallery. When I delete from the gallery it deletes from album too.

When moving photos from gallery to an album, they aren't deleting off gallery.  When I delete from gallery, it deletes from album too.  I basically have duplicate photos.

I dialed 611 and was on the phone with them for over 30 minutes and he said I needed to go to a store.  
Last time I went to the T-mobile store for a technical issue they said I had to call customer service. 
Google is showing this is a problem but I haven’t found a resolution.