I was on a survival world in my house, with 3 furnaces on the left and 2 beds on the right. I went to my personal mine to get more iron, and I found a nice village. After a while I came back home after a little bit. Something was wrong.

It seemed normal, the wood was still oak, the floor was still stone bricks, there were 3 furnaces on the right, and 2 beds on the left.

Something is wrong, but I don't know what. and FYI, I was alone.

Please tell me whats wrong! I once saw a villager fill in an empty floor. maybe that's it?