I had created this world on the snapshot before this week's snapshot. I had not gone to the nether or even lit a portal in the earlier snapshot. When I entered the portal it only loaded one chunk, it was raining, and nothing else could load. When I had mined blocks it didn't drop anything, the game would let me walk around but it was acting like it was under an immense amount of lag. The portal wouldn't work either, it would display the effect but wouldn't let me back into the over-world. i have a few snapshots but none of breaking blocks unfortunately. I'm not entirely worried right now, but it would be nice if it gets fixed in the future from general bug fixes.
P.S. It wouldn't save and close my world when i entered and I would have to go into my task manager to force the game to close. This could corrupt my world so I have no nether for now.
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Seems like this could be a case of MC-262351.

This is likely directly related to MC-262358.
I got the exact same bug.
Only one chunk, blocks don't drop items, nether portal doesn't TP back, and I have to force end program to exit minecraft. (When I click "Save and Exit" I get stuck on the "Saving World" screen)
Mine didn't come with any lag or low fps though. I could walk around freely. I also didn't come from an earlier snapshot. I just made a new world with the latest 23w18a snapshot.
I made an issue with my specks: MC-262382
Please provide seeds of the problematic worlds
Per MC-262359: -971255340339126519
My seed:
-423049240615632679
Thanks for the seeds - all will open correctly now.
It works! I'm spawning directly next to Ghasts and Hoglins, so I dug a hole and hid. Survived with one heart left; on easy mode! Gotta love this game
Upgraded world from 1.10.2. Y value is just tanking.
[media]Seed: 95932304047030364 created in v1.8.9.