i made a super flat world and spawned next to an igloo. I stayed there until water started coming from nowhere. I ran away and saw a village covered in snow. I entered the village and all of the snow blocks disssapeared. I killed the iron golem and made a snow golem. The snow golem attacked me for no reason then it stoped. The iron golem respawned. While i was staying there confused a house dissapeared. I left and never came back.

i dont remember the version that this happend on. I think it was 1.16.