This is an automated translation

When I'm playing Minecraft, all of a sudden, other mobs stop and the player just keeps flying with elytra. They don't respond when I press buttons, I can't pick up items, and even if I break them, they don't drop. I can't go to the Nether and other chunks aren't being processed properly. I usually use mods, but I'm experiencing the same problem even with the official launch configuration. I can play normally in other worlds, but it only happens in certain worlds.