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Item Frames in Multiplayer don't store item NBT data

PersistenceRequired tag freezes mobs

Mobspawner still don't work

Lightning Spawners Crash Server

Enderman NBT Data sign bit error

CustomName tag loaded for entities (not Mobs) but not saved

MinecartTNT doesn't save Fuse status or explosion type

Team option "friendlyfire" is not saved to disk; resets upon map reload

Mob Spawners failing to "Saving entity NBT"

Renamed Tile Entities don't store their NBT data when placed.

NBT tags are not saved between placement and breaking of a block

/give command creates crash-inducing items with incomplete [dataTag]

Custom potion effect cures aren't saving

Wrong NBT TAG Type for fallTime in FallingSand Entities

/testforblock does not work with chests that have NBT tags. I want this feature badly.

Game crashed when trading with villagers and clicking through the offers.

/give, /summon, /setblock "CustomPotionEffects" tag Applies 'integer' instead of 'byte'

Cannot disable experience from villager trades

/setblock containers with slots containing items with {BlockEntityData:...} don't have the NBT data

Scoreboard does not use UUIDs; scores will be lost by name changes

generic.followRange attribute causes java.lang.RuntimeException/java.util.concurrent.ExecutionException

Teleporting passengers does not dismount them

Code in chat splits at spaces

/entitydata outputs success message on invalid NBT tags

Placed ArmorStand has always predetermined pose

ArmorStand has missing pose entries

ShulkerBullet NBT gets corrupted when (Owner,) Target and Pos position are equal

Cobblestone wall fence gate facing south has different texture mapping (uvlock tag issue)

Ctrl Pick Block gives new item even if picked item already exists in inventory