Photos on my S9+ appear glitchy

[Noyiu]

I was scrolling back through my gallery and I noticed how a few of the thumbnails seemed to look very faulty. When pressing on the image, they appear completely blacked out or others just appear with vertical iridescent lines, ultimate ruining the picture. I've updated my phone, reverted the gallery app back to it's original update and even restarted my phone but nothing worked. Are there any solutions to this?

[BandOfBrothers]

That's not good @Noyiu 

When you initially take the picture and then look at the picture what quality is it ?

If your self help troubleshooting has not resolved this then maybe seek hands on at a Samsung Service Centre  / Samsung Experience Store.