Recently while playing on a realm, I wanted to go to the end for the first time to get an elytra, but as soon as the loading world screen was gone, I immediately fell in the void and lost all my gear. This is really frustrating as I worked hard to get all this and I couldn't have done anything to stop this. The problem may lie in spawning on the wrong place, but it could also be that while rendering, I looked at an enderman who killed me before loading. EItherway, this should be fixed as the player can't control these situations.