I was playing single player survival and I went mining for rescources,I mined some ores and went back to my base to smelt them, I had to take a quick break,so I clicked save and quit. When I came back all the stuff I was smelting was gone,so I went back to the cave I was in and they were all there again so I mined them again then I had to take another break in the middle of mining so I clicked save and quit again. when I came back I had the ores in my inventory but they were still in the cave I didn't want to cheat and get double the ore,so I went back home and started smelting again then I quit and loaded the world again to see what would happen,the stuff was gone again and back in the cave. I tried deleting the save and playing an earlier backup of the same world,but that didn't work. I tried force updating and even deleting all and reinstalling minecraft,but neither worked. I don't think it's that individual save but minecraft completely.
I appreciate any help. Thank you