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Bug
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Resolution: Fixed
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Minecraft 16w06a, Minecraft 16w07a, Minecraft 1.9 Pre-Release 1, Minecraft 1.9 Pre-Release 2, Minecraft 1.9 Pre-Release 3, Minecraft 1.9, Minecraft 1.9.1 Pre-Release 2, Minecraft 1.9.1, Minecraft 1.9.2, Minecraft 16w15b, Minecraft 1.9.3 Pre-Release 2, Minecraft 1.9.3 Pre-Release 3, Minecraft 1.9.3, Minecraft 1.9.4, Minecraft 16w20a, Minecraft 16w21a, Minecraft 16w21b, Minecraft 1.10 Pre-Release 1, Minecraft 1.10 Pre-Release 2, Minecraft 1.10, Minecraft 1.10.1, Minecraft 1.10.2
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Windows 10 64bit
Java 1.8.0_25 64bit
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Confirmed
Entities riding something don't appear riding anymore if you move away from them until the client does not render them anymore and come back. It is enough if it does not render the entity anymore / does not have it loaded, you do not need to unload the chunks. This is a client/sever desync.
You can see the effect for example when you're summoning a normal-sized Mob like a Skeleton or Zombie as a passenger of something. He will then sit visually. If you go away until the mob does not render anymore and then go back to him again, he doesn't appear sitting anymore, although he is still the passenger of the other entity. You can also move the boat around and the riding entity will stay floating in the air and not move at all.
Here a quick test command with a Skeleton sitting in a boat:
/summon Boat ~ ~1 ~ {Passengers:[{id:"Skeleton",ArmorItems:[{},{},{},{id:"minecraft:stone",Count:1}],PersistenceRequired:1b,NoAI:1b}]}
Another example is FallingSand as a passenger of an an ArmorStand. If you unload them and go back, the FallingSand will just fall client side, but not server side. Therefore the sand will still stay as an entity even if it looks like it hit the ground. If you reopen the world, it will appear on the ArmorStand again.. Note, that the FallingSand will drop as a Item if it persists for more than 400 game ticks (20 seconds).
Test command:
/summon ArmorStand ~ ~5 ~ {NoGravity:1b,Passengers:[{id:"FallingSand",Time:1,Tags:["NoDespawn"]}]}
In order to prevent the FallingSand from dropping after 400 ticks do in a repeating command block:
/entitydata @e[tag=NoDespawn,type=FallingSand] {Time:1}
Since there are some duplicates with Skeleton horse attacks let's describe that as well so that this report gets found a little better:
If you are in a survival world, occasionally during a thunder storm there might spawn a skeleton horse trap. There are Skeletons riding a horse then. If you reproduce the bug as described above, the skeletons will float in the air, can not get hit by you and will still shoot from the bag of the skeleton horse.
Also on a multiplayer server, when riding a horse, boat or minecart, other players on that server might not see you correctly as described.
Code analysis by marcono1234: https://bugs.mojang.com/browse/MC-96954?focusedCommentId=304953&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-304953
- is duplicated by
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MC-96832 Players riding horses in Local Lan network are invisible
- Resolved
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MC-96834 Shulker riding an armor stand moves when it's rerendered
- Resolved
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MC-97254 chicken bug in minecart starting to move
- Resolved
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MC-97681 Passengers desynch from base entity if player moves too far away
- Resolved
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MC-97696 Mobs in minecarts will not be posistioned correctly when going into unloaded chunks
- Resolved
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MC-98066 Vehicle's rider appears in original position while vehicle appears empty
- Resolved
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MC-98519 Ghasts coming free of mine carts
- Resolved
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MC-98683 Minecart passenger left behind floating above track
- Resolved
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MC-98765 "Ghost" Livestock Riding the Rails
- Resolved
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MC-99104 Player is invisible while riding a horse
- Resolved
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MC-99136 Minecart with villager
- Resolved
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MC-99237 Skeleton Riders Appear to be Dismounted from Skeleton Horses
- Resolved
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MC-99372 Skeletal horses' riders become detached
- Resolved
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MC-99430 LAN Glitch cant see people or animal on boat.
- Resolved
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MC-99619 Animals and Minecarts
- Resolved
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MC-99683 Skeleton riders doesnt move with the horse but the arrows came like he was riding it
- Resolved
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MC-99737 Desync when player enters boat that is outside another player's visual range
- Resolved
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MC-99836 Horse rider dissapears
- Resolved
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MC-99994 Entities riding minecarts displayed at an incorrect position.
- Resolved
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MC-100077 Entity Passengers and visual glitches.
- Resolved
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MC-100255 Ridable Entity Visual Glitch
- Resolved
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MC-100327 Mounted Player Invisible when Having Mounted Rideable Entity from Far Away
- Resolved
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MC-100470 player not visible while riding a horse (yet player is visible and collidable where it got on)
- Resolved
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MC-100648 Invisible rider
- Resolved
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MC-101093 Invisible Riders 1.9.2
- Resolved
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MC-101094 Mobs-riders dispawn
- Resolved
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MC-101185 Ghost villager in minecart
- Resolved
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MC-101666 Villager in minecart visual bug
- Resolved
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MC-102665 Player and Horse are not synced
- Resolved
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MC-102920 Visual glitch with villagers and minecarts
- Resolved
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MC-103215 Mounts Disappear upon dismounting after travelling huge distances
- Resolved
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MC-104518 Players on LAN in boats are far away from their boats.
- Resolved
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MC-104544 Player Model Glitches With Mounts
- Resolved
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MC-104651 game restarts cause entities to appear not riding other entities
- Resolved
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MC-104884 Incorrect player position while in a boat
- Resolved
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MC-105087 Invisible Passenger on 1.10.2
- Resolved
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MC-108325 Villagers Become invisible after some time when kept in Minecart. A ghost villager is created at that location with no AI(also it cant be moved). they reappear when the minecart is broken
- Resolved
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MC-109824 Animals in Minecarts Display Improperly after Exiting and Re-entering Area
- Resolved
- relates to
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MC-90683 "Received unknown passenger" - Entities with differing render distances as passengers outputs error
- Reopened
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MC-101764 Villager in minecart bug
- Resolved
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MC-101247 Horses, donkeys, mules, and boats sometimes disappear after dismounting
- Resolved
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MC-103279 Teleporting invisible armorstand with a minecartridable riding the armorstand creates render bug after reloading chunks
- Resolved
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MC-103672 Steerable ridden entities (boats / pigs / horses) teleport back to their previous position for a short moment on dismount
- Resolved
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MC-103681 Disappearing Horses & donkeys
- Resolved