Datafixer doesn't properly update certain scoreboard objectives from 1.16 to 1.17

Inconsistent xp and level value

Invalid syntax when using decimal values on block position arguments

"Unknown score holder" when using the placeholder * in some commands

Hopper clock spam empty lines in game output

Wrong armor_stand hitbox and hitbox update

You can place blocks behind the shulker box when it's closing

Incorrect entity translation name in statistics

Fence / Fence gate texture uvlock problem

execute detect air at Y coordinates > 256 and < 0

Tags IsBaby and IsVillager can't be changed from true to false with /entitydata

Debug mode not removing TileEntities from previous snapshot

/particle autocompletion

Particle command don't work

/setblock, wrong metadata on some TileEntities

Crash when using /clone on complex structure(command block and pulser)

Falling sand who should not despawn

Entities can't attack the player when they are falling

Riding mob bug

Piston can't push annother piston

Mobspawner still don't work

Command doFireTick