"Albums" are folders in the phone. The picture files are backed up, but you can't back up folders - they're an artifact that only exists in the phone.
Use a file manager. Go to DCIM/Camera, then create each of your "albums" as folders. Then find each picture that belongs in the first "album" and mark it, Copy. Go to that folder and paste. (Don't Move - if a move blows up in the middle, you lose both the original and the copy.) If the copy works, delete the originals. Then go on to the next folder, and so on.
Then restart the phone, so that Media Scan learns where the pictures are. (Apps like Gallery and Google Photos don't search the phone for pictures, they look in the Media Scan database. It's much faster that way.)
03-04-2019 04:50 PM