Topic category: Troubleshooting, bugs, and solutions
A biome absolutely refused to compile because of some errors; it had apparently been unable to load the Cocoa generator.
Walls refuse to compile, apparently it is unable to load the block type.
A bunch of advancements that I had made a long time ago, but deleted, have suddenly returned and are obtainable, with broken names and descriptions.
I'm sorry I wasn't able to be more descriptive about this, but I would have to imagine these issues should be fairly easy to reproduce, as I doubt I'm the only one experiencing them.