220.127.116.11 Preview, 1.20.30
Big edit: I have been able to reliably repeat this by making a dispenser with a redstone clock dispense 64 villagers and then placing in a single zombie. The moment they all recognize the zombie and start moving, the game ticks drop severely. Making a large amount of villagers with work stations and beds does the same thing slowly over time.
You can tell the bug stopped as soon as the xp for the zombie appeared.
I loaded up a backup of my main world, ran the command /kill @e [type=villager] and the issue was solved instantly. Everything is working at normal speed now.
Smaller edit: Here are some other notable clips I’ve gathered.
Villagers lagging so hard that they unload:
I am experiencing a horrendous amount of gametick lag near (large amounts of)
hoppers and other redstone components working villagers in Bedrock 1.20.30. This was never an issue before this new update in my world. My frames are fine but it's as if the game is working at 1 tick a second. Everything is in slow motion when those chunks are loaded. Mobs move extremely slowly and redstone components also. The day night cycle is also affected. I can move away from those chunks and suddenly the game goes back to normal with mobs moving at normal speed and no issue. What's going on? My game is unplayable around my base now. I have loaded up worlds with large amounts of villagers and they operate fine. I really think it's lag created by redstone components or maybe trapdoors and other nonsolid blocks villagers.
Here are some video clips demonstrating what I’m talking about:
https://drive.google.com/file/d/13cjFAXWCJLKesiCNtYIg28FJ-dvLmAFG/view?usp=drivesdk https://drive.google.com/file/d/1JdvnfA5zRJakSoHd3ptgD9YzPGXG3ujS/view?usp=drivesdk https://drive.google.com/file/d/1quWLJfdRBQ6LG8T8zgSFELhLT6uK1Fgo/view?usp=drivesdk https://drive.google.com/file/d/1tHraAMfSJsjToTKN4hZCw6OhAFvLL7R4/view?usp=drivesdk