Structures disappear when approached
When approaching structures in Survival, Creative, or Spectator mode, the structures disappear. See attached video for this happening in live action.
level-seed=-1374966030
I've attached a screenshot of a previous village that was found, but no longer exists. The "/locate structure village" command believes the village is still there though.
I first noticed this issue in The End while looking for End Cities. It also happens in the normal world. I have not checked it in The Nether