I have s9+ i had over 20 albums and now they are gone. One drive nope. Google photos yep but not by albums only by date. It was there before this weekend and now gone. No SD card. Please help. Thank you.
If you had your Samsung Cloud synced with your Gallery, go in to the Gallery app > 3 Dots > Settings > Recycle bin > And you will have the option to recover the photos/videos. Also, if you have Google Photos, check for the pictures in there as syncing this may have moved your pictures from the Gallery to Google Photos.
Are the pictures still available, just not in albums? Have you tried clearing the cache for the Gallery?
You can do so by going to Settings>Apps>Gallery>Storage>Clear Cache