End city contains no chest with loot

It is a small end city. (I originially changed it into peaceful and then back into easy) and there are no chests in any of the rooms. I go into larger end city, no chests either. Everywhere were there should be chests and enderchests there are none. I have no cheats on, and I have copied this world several times for backup (this is one of the backups). This backup was made before the end generate (before entering end portal).