desync issues
MC-4Item drops sometimes appear at the wrong location
Low
MC-1304Mobs in water vertical position client-server desync
Duplicate
MC-1336Spider climbing position client-server desync
Duplicate
MC-7489Mob position in the air client-server desync
Incomplete
MC-12363Lava / water / powder snow bucket desync when using it while rapidly turning
Fixed
MC-15651Lily pads can be placed client-side in protected areas
Duplicate
MC-54119Can place/take water/lava/lily pads outside world border and inside spawn protection
Fixed
MC-75022Failed jump is tolerated/Impossible movements possible
Confirmed
MC-86252Shields can continue to block after entity changes dimensions due to client and server desync
Fixed
MC-90954AreaEffectCloud does not teleport without relogging
Duplicate
MC-91522Shulker rendering position desync and generates ghost shulker when destroying shulker-ridden boat or minecart
Fixed
MC-91759End dimension only: End crystals aren't actually pushed server-side, causing ender crystal location desync
Fixed
MC-96954Passenger Entities get dismounted client-side when rerendered
Fixed
MC-99075Cancelled block place (spawn protection) causes inventory desync
Important
MC-112988Item desync when right clicking a powered furnace minecart with fuel after reloading world
Confirmed
MC-186770A desync occurs when swapping a held sword with another item, or vice-versa while breaking a block
Confirmed
MCPE-91770The player's position gets desynced on the client
Duplicate
MC-198453Scrolling hotbar slots while consuming a potion or food causes a desync and turns another potion or food into a ghost item
Normal
MC-211201Shulker box sound desync caused by opening and immediately closing a shulker box
Confirmed