What is it?
The game interactions would go freeze for a moment specially if there are many entities in that area, the game doesn't lag but the block/entity interactions would not respond.
Example:
Mobs would be static at its position, but will show its animation like fishes swiming
Spawning mobs wont work after a few moment
blocks would not be placed, destroyed or interacted
Commands can't be executed while this bug happens
Blocks and entities wont be updating
Cleaning up old tickets: This ticket has not been updated recently (~1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki