Labels

Sliders cannot be adjusted accurately (tested in customized world settings)

Minecraft Crashes when setting FixedBiome to Hell

More than 1 biome (rivers don't count) can generate in customized single-biome worlds

Customized World Preset Biome ID >= 8 adds 2

Mesa (Bryce) doesn't use some settings from custom World

The customization GUI initially doesn't have the 'Defaults' button enabled when recreating a world with customized settings

Bugged water generates above custom sea-level in swamp biomes

Crash when generating world with certain custom preset

/locate and custom worlds

depthNoiseScaleExponent doesn't do anything

Y-coordinate Far Lands "Far Sky" generate when HeightScale is set to excessive levels

Forest and taiga type biomes spawn with large treeless areas when ore vein spawn sizes are set to excessive values

Woodland mansions do not generate if ground is too low

Void World spawns you at y=0 even if you entered 64 air blocks in customization

Swapping json data for dimensions via custom world breaks portals

[Crash] java.lang.NullPointerException - Crash when killing the enderdragon in other dimensions via custom world

Configured features within datapacks are broken (FIXED – see comments)

Village town centers aren't affected by jigsaw pools

Softlock when attempting to validate datapack

Crash when clicking "Presets" after setting the superflat preset with a non-existent biome