Minecraft wiki entry for List_of_broken_features, associated text: Travelling to another dimension via the use of a nether portal or end portal would result in a dedicated sound being played on the dimension loading screen. This sound played as expected up until 12w18a, when it stopped playing completely, teleporting the player silently. In 16w02a, this sound would now play again, however after transport to the dimension rather than on the loading screen.[5]