Lava and water springs can generate inside ice spikes

Nether generation is broken

"Clone" biomes

Seed "0" does not use the world seed in custom dimensions

Glow squids and axolotls spawn in all oceans

Fossils can generate through bedrock

Fishing Rod cannot be cast

Giant (2x2) trees always have their northwest corner log one block higher

Baby piglins make hostile piglin noises, despite not being able to attack

Ghost blocks in Multiplayer

Ocean Monuments can generate with ice blocking their passageways

Soul Sand Valley doesn't use spawn budgets, resulting in way too many mobs.

Weather cannot be controlled in custom dimensions

Beacon only displays beam when looking at the beacon

Pumpkin and melon stems not attached in Mansions

Ender Dragon fireballs ignore Hurt Time

Different languages don't fit correctly inside their text box

Fire renders incorrectly inside inventory (20w22a)

Rain and snow renders in front of blocks (20w22a)

Items render in front of other entities, transparent blocks, and blocks with special renderers

Text is interrupted by numerical values on items

Striders spawn on land (single biome world type)

Customized worlds still say "Buffet world customization" since 20w21a

Bottom of Nylium texture looks different than surrounding sides (with Programmer Art)

Ghasts shoot fireballs from above their heads instead of from mouth (Bedrock Edition)

Baby Hoglin/Zoglin heads come off during attack animation