u/Inevitable-Baby-5922

I've been having occasion photos saved to my camera roll for some reason? It's just random pictures of nothing and it'll be like a random colour like black or beige and I just can't figure out what they are because I know for a fact I'm not taking them. I can't attach photos to this thread but usually a random 1 or 2 will save at a time and it'll either be beige or black