I am so glad I wasn't the only one who was experiencing this! I've also reported this but was still very worried that it was a problem with my Hard drive storage, which I've heard can result in file corruption.
Apparently Cave Vines getting CUT OFF by a Mineshaft below is still the same bug, so I'll add screenshots of that.
Seed in those 3 pictures is -347828615443259447
Geodes don't have a layer of regular stone around them, this is normal.
You might be mistaking this for the Stronghold structure, which DOES generate stone around to conceal it!
Alright I've made another 1.17 world with a ravine going into new chunks and deleted the chunks west of the ravine! (Which seems to gains some results when upgraded)
You should see it in Attachments!
@Mention panda4994
Can't get MCA Selector to work on the world properly and I also can't upload the "region" file because of the 10.00 MB limit
I'll just try to find another world that has a Ravine at the border, but locate it through MCA Selector instead of in-game
I don't think I made a back up of this world before loading it, I COULD probably try to make a version of it and erase some of the chunks!
@Hipposgrumm I have a program for deleting chunks so I could technically do that while avoiding the Command Blocks, I'd just rather wait until the bug is fixed!
I actually found a Woodland Mansion with 3 Anvil rooms side by side and one of them was flooded due to a lake right outside.
Bug still occurs in 1.20 Pre-release 1