[MC-122354] Flying with elytra crash game / kicks player

You get kicked if you fly with an elytra with fireworks or a riptide trident straight up or down and you get a message ''Invalid move player packet received'' but if you fly in the end/nether you will crash instead of a kick.

mariohessel lost connection: Invalid move player packet received
19:55:13	net.minecraft.server.MinecraftServer	mariohessel left the game
19:55:13	qx	Stopping singleplayer server as player logged out
19:55:13	gd	handleDisconnection() called twice
19:55:14	net.minecraft.server.MinecraftServer	Stopping server
19:55:14	net.minecraft.server.MinecraftServer	Saving players
19:55:14	net.minecraft.server.MinecraftServer	Saving worlds
19:55:14	net.minecraft.server.MinecraftServer	Saving chunks for level 'Copy of 1.13 generate test'/overworld
19:55:14	net.minecraft.server.MinecraftServer	Saving chunks for level 'Copy of 1.13 generate test'/the_nether
19:55:14	net.minecraft.server.MinecraftServer	Saving chunks for level 'Copy of 1.13 generate test'/the_end
19:55:23	bmh	Unreported exception thrown!
java.lang.StackOverflowError
	at bmy.b(SourceFile:684)
	at bmy.d(SourceFile:615)
	at bmy.d(SourceFile:617)
	at bmy.d(SourceFile:617)
	at bmy.d(SourceFile:617)

Linked issues

is duplicated by 72

MC-122380 Elytra movement crashes game Resolved

MC-122933 Looking directly up while flying with Elytra will cause the game to glitch, and kick the player from the world Resolved

MC-123047 Elytra Swimming Game Crash Resolved

MC-123109 Fireworks not working Resolved

MC-123169 crash! Resolved

67 more links

relates to 2

MC-124334 The elytra bug causes you to glitch through floors Resolved

MC-126630 Glitch involving Riding a Phantom Using a Saddled Pig Resolved

Attachments

Comments 26

MasterOfTheTiger 2017-11-28T19:46:15Z

This is the same problem I am having with the newest snapshot, 17w48a.
It happened twice, right after one another.

[media]

This is the important part of the game log:

[11:38:42] [Server thread/INFO]: MasterOfTheTiger lost connection: Invalid move player packet received
[11:38:42] [Server thread/INFO]: MasterOfTheTiger left the game
[11:38:42] [Server thread/INFO]: Stopping singleplayer server as player logged out
[11:38:46] [Server thread/INFO]: Stopping server
[11:38:46] [Server thread/INFO]: Saving players
[11:38:46] [Server thread/INFO]: Saving worlds
[11:38:46] [Server thread/INFO]: Saving chunks for level 'Snapshot C'/overworld
[11:38:47] [Server thread/INFO]: Saving chunks for level 'Snapshot C'/the_nether
[11:38:47] [Server thread/INFO]: Saving chunks for level 'Snapshot C'/the_end

EchoBlade 2017-12-12T01:22:32Z

Confirmed for 17w50a.

Ben Geentjens 2018-01-09T20:07:31Z

You don't even need a firework to trigger this bug. Just look straight up while flying the elytra and you'll lose the connection to the internal server as soon as you start falling.

Kepler Teddy 2018-01-19T21:28:37Z

Keeps happening to me as well! 😞

Boomber 2018-02-15T16:06:56Z

This also seem to happen when firework boosting out from swimming animation.

16 more comments

Matthew Pichette 2018-02-19T16:58:22Z

I can confirm this for 18w07c as well

Marcus H 2018-02-22T00:49:56Z

comfirmed for 18w08a https://www.youtube.com/watch?v=vNSNCR9V-6U

CCheukKa 2018-02-25T07:23:03Z

This glitch is so annoying. I can't access the world anymore until a fix is released. Please release a bug fix version ASAP.

FaRo1 2018-02-25T13:12:17Z

You should have a short timespan in which you can do something. If you have access to commands, you can enter /gamemode 3 into chat from the clipboard. If not, you can try to open to LAN to get command access, you can try to steer down very quickly (maybe even with a rocket) or you can use a program like NBTEdit to set your motion to 0 0 0.

Not Telling Yuwe 2018-02-25T13:15:49Z

How about they just remove the survival players can't fly rule? Then you wont keep getting kicked and this kind of thing can't happen again because it has happend before with servers where you'dd just get kicked for flying.

FaRo1 2018-02-25T13:23:31Z

It's there to prevent hacked clients from just flying around the world like in Creative. It's one of the things that prevents cheating. It's pretty difficult to figure out when a player is moving properly with an elytra and when he's using cheats. Don't worry, it'll be fixed before the 1.13 release.

DuckDuckLoop 2018-03-01T21:00:35Z

Affects 18w09a

CreeperMagnet_ 2018-03-02T00:23:21Z

Still affects 18w09a.

jamesmoton 2018-03-02T00:56:58Z

See this video: https://www.youtube.com/watch?v=Lny6Ri7y_y8

Command to summon Phantom:
/summon phantom ~ ~10 ~ {Size:5,Passengers:[{id:"pig",Saddle:1,ActiveEffects:[{Id:14,Amplifier:0,Duration:199980,ShowParticles:0b}]}]}

Basically, if you summon a saddled pig riding a Phantom, start riding the pig, switch gamemode to Survival, and then /kill @e[type=!Player], instead of falling down as expected, the game crashes or kicks you out for "Invalid move packet received". Tested in 18w09a.

fasdasdfasd 2018-03-02T13:58:27Z

very true, just watched a video about it
Also, clicking the "back to server list" button goes to the server list
(logical, but it should say back to world list)

FaRo1 2018-03-02T20:25:13Z

James, please create a separate report about that, if nobody has before, then link it in a comment here so that it can get marked as related. Luka, I think that's already reported. Both of you, it's better if you create a new report (after searching) that might get closed as duplicate, instead of writing it in a comment where it doesn't get noticed.

CivetKitty 2018-03-03T03:30:26Z

I created the ticket for you(MC-126630).

SnipUndercover 2018-03-07T18:54:50Z

Tried reproducing in singleplayer 18w10a, seems like it's fixed there. Haven't tried multiplayer yet.
EDIT: Nevermind, wasn't looking up long enough. Still not fixed. xD

Null Johnson 2018-03-14T21:10:50Z

Confirmed for 18w11a. This bug is almost entering "feature" territory.

husky2490 2018-03-21T06:02:25Z

has anyone tested if this crashes servers too?

FaRo1 2018-03-21T06:31:36Z

No, it doesn't, he error message would be different. The error handling kicks you.

Another thing: When I had this, I got kicked even though I was in the Nether.

A. Mouse 2018-04-07T02:49:27Z

BTW, a way I've found to reliably trigger it quickly is get flying, and spam rockets while "snapping" your view up and down quickly.

Stef B 2018-04-08T17:15:05Z

confirmed for 18w14b
also: when i joined my world again all my effects were gone
EDIT: this happed a second time to me and now i cant join my world anymore
it crashes after about 0.5 - 1 second everytime when i join the world

Hessel albers 2018-04-08T17:20:19Z

stef its already updated 😛

user-f2760 2018-04-08T17:23:49Z

@unknown it got added after they commented.

Hessel albers 2018-04-08T17:25:18Z

Yeah I did that Becasue I noticed it was not saved last time.