Although this problem first occured on a realm, its persistent with a downloaded copy of the world played in single player locally.

Whenever we go to the end to fight the dragon as soon as the dragons health bar loads the whole game crashes for everyone on the realm. Same thing happens when attempted locally on the downloaded world. This does not occur on newly generated worlds.

Leading up to this, - we attempted to turn on coordinates by downloading the world, changing the setting and re uploading it to the realm - Whole thing crashed, wouldnt upload and couldnt access the realm for a whole day untill it suddenly started working again.

We had succesfully been to the end before that incident without any problems before 1.11.4. The coordinate change attempt was before 1.11.4

We only noticed the end crashing after 1.11.4 but may have already been present.

We suspect its caused by the attmepted upload of the world with altered settings.

We havent found anyone else with this problem - Its a major as we can no longer progress onwards with the game.

Cannot provide screenshot as the only way to get out of the game is to force a shutdown.