Teleporting ridden entity in unloaded chunks does not cause chunks to load for riding player

That is fascinating. What happens if you try to move? Dismount?

No, your actions appear to have no effect until relogging at which point you're back on the horse.

In 14w10a the horse vanishes instead of reappearing after relogging.

This problem still exists in 14w28a and the horse is still vanishing.

In 14w28b the horse reappears again after relogging but the basic issue still persists.

In 14w32b the player gets teleported but only half of the world loads before relogging. The part that's not loaded includes the player's position.

confirmed for 14w32b

In 14w34d loading the world after teleporting works from time to time but I'm floating over the ground and the horse is gone. As before, this is fixed by relogging.

This bug is still happening in the first pre-release, 8 months after submitting.

Great job Mojang, this was reported for the second snapshot and is still in the release.

I see this as well in 1.8.3, it occurs if you teleport the horse too far while riding it:

/tp @e[type=EntityHorse] ~81 ~ ~
OR
/tp @e[type=EntityHorse] ~-80 ~ ~

Anything less than those distances works fine as intended.

After teleporting, you can move but slowly and you'll hear your horse but it is invisible and you'll be back at ground level. If you dismount, you can move fine, but your horse will be invisible until unknown conditions occur (or relogging). Staying on the horse and relogging shows you fine on the horse.

It looks like in 14w10c (the same issue occurs at the same distances) that if I dismount the horse and move a couple blocks away the horse reappears, this is not the case in 1.8.3.

Tested the Y direction, works fine.

Also tried teleporting other mobs long distances and discovered that they disappear too! At least until the player moves/looks around a bit. For instance if I teleport a Spider Jockey 100 blocks away into the daylight near my position now, I'll hear him burning, but until I move a bit, I won't see him.

Seems like another bug or maybe related to this same issue? Maybe related to MC-65040

It also appears that the horse teleports visually before the player does, I see the horse for a brief instance in the distance before I move, but then the horse is invisible.

As a player, you're stuck on the horse and get snapped back to its location if you try and move. You can dismount, but the horse is still invisible.

Thanks for testing, I've updated the version. Btw, the Y axis is fine because it has no effect on chunk loading.

Thanks for updating the version. I don't think it has as much to do with chunk loading as rendering. Because you'll hear the mob still, so it knows it's there, you just can't see it.

I tested this out in multiplayer too. On your own machine, you get stuck and the horse is invisible. But if you see someone do it, you'll still see them on the horse (though sometimes it takes a bit or you have to look around a bit, probably related to MC-65040). Of course, since they're stuck, you won't see them moving.

Leads me to believe it's a local-client issue as if another player sees things properly then the server must have the proper info.

Still occurring 15w49b. In the few tests I did, I so far got the following results on render distance 8:

• Teleported into unloaded chunks (I used ~200 ~ ~), world is not loading until relog which takes me back to where I was before getting on the horse because the world did not seem to have saved

• Teleported into unloaded chunks (I used ~200 ~ ~), world is not loading. Relogged, and now I'm on the horse in the right spot but I can't move or dismount until it is killed.

• Teleported into nearby chunks (I used ~100 ~ ~), I fell to the ground at the original spot, gameticks stop running for a second, then things update and now I'm back on the horse in the correct spot.

I think this behavior may be changed (but still broken in a slightly different way) in 15w51b

Is this still an issue in the latest snapshot 16w44a? If so please update the affected versions.

This is an automated comment on any open or reopened issue with out-of-date affected versions.

Confirmed for 1.13-pre8

Confirmed for 1.13

Confirmed for 18w30b

Note: Teleporting the boat in 1.14.3 caused

to happen.

Can confirm; the ticket's description is no longer up to date though. The player just gets stuck in the original location and isn't actually teleported.

Affects 1.16.1 and 20w29a

Can confirm in 20w51a.

Can confirm in 21w03a.

Can confirm in 21w05b.

Can confirm in 21w06a.

Maybe we could add the label "minecart" to this bug report, in addition to "boat" and "horse". Perhaps that would help get this issue noticed by Mojang. I've long wanted to extend my minecart system to include jumping from an overworld track to a track in the nether or the end, but this bug prevents that.

Can confirm in 1.18.1.

Can confirm in 1.19.2.

As of 23w04a, teleporting the boat into unloaded chunks dismounts the player client-side. If the player tries breaking or placing blocks after running the command, these actions will generally be invalidated by the server, although in some circumstances they seem to work even though the server thinks the player is far away. The F3 coordinates seem to consistently reflect where the player appears to be (on the client). If the player runs

/ride @s dismount

or relogs they will be teleported to the boat and will load the chunks around it.

This issue was fixed in 23w12a as part of the fix for [MC-201647]. However, passengers are not teleported instantaneously (as they are when teleporting them directly); it seems like the chunk they're being teleported to must finish loading first. I may decide to make a separate ticket for this.