Minecarts sometimes appear off the track
minecarts appear off the track. Its Just a Normal minecart
Linked Issues
is duplicated by32
MC-7104Chest Minecart doesn't move on the trackDuplicateMC-8294Minecart appearing off rails on serversDuplicateMC-9064Minecarts not moving correctly after reloggingDuplicateMC-11243Minecart when reloading - Visual glitch DuplicateMC-11829Carts glitch out when opening worldDuplicateMC-11902Minecart drives next to the railDuplicateMC-13146Minecarts are rendered in the wrong place when reloadingDuplicateMC-38569Minecart Goes Off RailsDuplicateMC-38966Minecarts spazzing off trackDuplicateMC-40833Minecarts riding on Ghost tracks.DuplicateMC-50994Minecart turning animation is buggyDuplicateMC-116628MinecartDuplicateMC-117838Minecarts not rendering on railsDuplicateMC-158050Minecart off track bug 1.14.4DuplicateMC-174825minecarts drive next to the tracksDuplicateMC-181067Minecart position glitchDuplicateMC-200248Rejoining a world causes minecarts to roll out of its railsDuplicateMC-214236Problem with loading minecratsDuplicateMC-225168minecart issueDuplicateMC-228149Minecarts and collisionDuplicateMC-240710Minecart runs off the rail!!DuplicateMC-242459Minecart renders sideways on railDuplicateMC-252325Sometimes Minecarts can be incorrect position at diagonally railDuplicateMC-254499Minecart going off rail.DuplicateMC-267161Minecart piston pushDuplicateMC-272917Minecarts misaligned, not on rails as supposed to after reloading chunks, while the minecarts moveDuplicateMC-831Minecart Under Rails When Connected To Levers In Certain TimesDuplicateMC-2883Minecart glitch outDuplicateMC-3189Minecarts Off Position from RailsDuplicateMC-3478Minecart appears off the rails http://i.imgur.com/FbkJM.pngDuplicateMC-3694Minecarts appear to glide off of the rails when they actually aren'tDuplicateMC-9128Minecraft - Mine cart Boosters, Switching Tracks, And Derailing.Duplicaterelates to5
MC-2714Minecarts pass through non-full-height blocks when snapping to rails
LowMC-170907Network position deltas are processed relative to a wrong pointFixedMC-158169Minecart can visually appear on a rail track below it when going upwardsLowMC-9157Minecarts switching tracks on closed tracksLowMC-342Positions of entities become offset to clients in SMPAwaiting ResponseAttachments15
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- Unresolved
thenobrainer- 44
- 28
- Confirmed
- Low
- Platform
- Minecart Rendering
- experimental_minecart_fixed minecart rails
1.4.2 - 1.21-pre2
1.4.2 13w02b 13w04a 13w05b 1.5 1.5.1 1.6.2 1.6.4 13w36a 13w36b 13w42b 13w43a 1.7.1 1.7.2 1.7.4 14w03b 1.8 1.8.1-pre3 1.10.2 16w42a 17w06a 1.12-pre5 1.12.2 18w01a 1.13.1 1.13.2 1.14.4 19w39a 19w40a 1.15.2 20w11a 1.16-pre2 1.16.1 20w29a 1.16.2 1.16.3-rc1 1.16.3 1.16.4-pre2 1.16.4 20w46a 20w49a 20w51a 21w03a 1.16.5 21w05b 21w07a 21w11a 1.17 1.17.1 21w44a 1.18-pre5 1.18.2 1.19-pre3 1.19-rc2 1.19 1.19.2 1.19.3 1.20.2 1.20.3-rc1 1.20.6 1.21-pre2
Created Issue:
minecarts
minecarts appear off the track. loads of minecarts appear on the one track even though only one was placed on it.
Environment
Just normal minecraft enviroment on superflat
Attachments3
minecartsappear off the track
minecarts appear off the track
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minecarts appear off the track.
loads of minecarts appear on the one track even though only one was placed on it.minecarts appear off the track. Its Just a Normal minecart
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Just normal minecraft enviroment on superflat
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minecarts appear off the trackMinecarts sometimes appear off the track
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[Mojang] SHugoh[Mojang] SHugohDuplicate of MC-2783 , please use the search function to see if your bug has already been submitted. Currently over 25% of tickets are being closed as duplicate.
Duplicate of: MC-2783 - Please use the search function to see if your bug has already been submitted.
Currently 29% of tickets are being closed as duplicate.
Duplicate of MC-2783 , please use the search function to see if your bug has already been submitted. Currently over 25% of tickets are being closed as duplicate.
Duplicate of MC-2783 , please use the search function to see if your bug has already been submitted. Currently over 30% of tickets are being closed as duplicate.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 49% of tickets are being closed as duplicate.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 51% of tickets are being closed as duplicate.
Aha.
The issues are already resolved by the other mods as duplicate of MC-14, MC-32 and MC-2783 .
Please review the guidelines before reporting future issues.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 53% of tickets are being closed as duplicate.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
Duplicate of MC-2783, please use the search function to see if your bug has already been submitted. Currently over 55% of tickets are being closed as duplicate.
Duplicate of MC-2783 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Is this the same as MC-2783? https://bugs.mojang.com/browse/MC-2783
There's a separate ticket about Minecarts only, MC-2783. Resolved as a duplicate of that ticket instead.
Steps to reproduce
- Run a minecart in a loop (see the screenshot below)
- Teleport 100 blocks away and wait a few seconds (/tp ~100 ~ ~)
- Teleport back (/tp ~-100 ~ ~)
The minecart appears to be travelling at an offset from the track. It might take a few tries. Make sure the chunks don't unload when you teleport away.
Code analysis
When a player starts to see an entity, the server sends the entity's current position to the client. But an entity also has another, internal position used for sending and calculating relative motion updates. This position doesn't get sent to the client with the spawning packets, so every consecutive relative motion packet is incorrectly applied. This continues until the next absolute position sync.
A proposed fix is to include the internal encoded position (ServerEntity.xp/yp/zp) in entity spawning packets and set it on the client (Entity.xp/yp/zp).
This only affects entities which are moving when they come into the player's tracking range and have already existed on the server side for some time.
Also, looking at ServerEntity.sendChanges(), the position is supposed to resync every, what appears to be, 20s (400t) but the timer which tracks that gets incremented only every updateInterval ticks (e.g. arrows get resynced every 400s). I'm not sure if that's intended.
This bug is related to MC-342, MC-2783 and probably many other similar issues.
Trivia:
This is a very old bug. I was able to reproduce it on alpha 1.1.2_01, one of the first multiplayer versions.
Thank you for your report!
We're actually already tracking this issue in MC-2783, so I resolved and linked this ticket as a duplicate.
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Thank you for your report!
We're actually already tracking this issue in MC-2783, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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Affects 1.16.2 Pre-release 1
Also relates to MC-2783
Affects 1.16.2 Pre-release 1
Also relates to MC-2783
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-2783, which is a report that has not been resolved yet.
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Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
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Duplicate of MC-2783.
Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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I believe this is a duplicate of MC-2783
Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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Could be either duplicated or related to MC-2783
Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
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Thank you for your report!
We're tracking this issue in MC-2783, so this ticket is being resolved and linked as a duplicate.
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Thank you for your report!
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Would MC-2783 describe you're issue? I would also like to ask if this occurs on 1.21 Pre-Release 2?
I can confirm that MC-2783 describes this issue.
However I searched and I had not found anything regarding this issue at first.
I searched under "minecart misaligned" for example
Thank you for your report!
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Version 1.4.6 - Minecart moving in clockwise direction appears off track at about the 6:00 position and returns to the track at about the 12:00 position.
Related to
MC-4057? It's also a problem with minecarts turning...No, unrelated. This is about carts appearing off the track while still being ON them.
You are correct Anon Ymus - in my example the minecart is still "on the track" because it keeps going around.
This seems to happen when a (storage?)minecart is moving while one is quitting the game (SSP).
The minecart is being displayed at (x,y,z-1) when being at (x,y,z).
Illumination is being computed referring to (x,y,z-1) (i.e. gets black when moving next to a solid blocks).
Apart from that the cart follows the rail quite normally: The interaction with turns, acceleration tracks, and sensor tracks is normal.
no its just a normal minecart
Just seen this happened in 1.5.1 pre while testing
MC-1692.Wanted to report it, but anyway, let me further explain what is going on here.
This is a Minecraft Server bug in the net.minecraft.server.EntityTrackerEntry class.
It contains a method that creates a spawn packet for the tracked Entity.
This spawn packet uses the 'live' entity coordinates, NOT the ones that are known and synchronized to the other players.
As a result, relative movement packets are sent later on which invalidate that 'too new' spawn message.
This issue occurs for the VehicleSpawnMessage, MobSpawnMessage and possibly others, too. It can be fixed by using the SYNCHRONIZED x/y/z/yaw/pitch values from the EntityTrackerEntry in the spawn message, instead of the 'live' coordinates of the Entity.
The live coordinates are used in the new(Entity) constructor of the packets.
A routine 'absolute update' is sent every 400 ticks/20 secs (I believe) and fixes this mismatch in that time frame. This makes this bug somewhat bearable.
For minecarts, this issue lies deeper with also issues in curves where it derails for a split second. This has to do with entity movement interpolation and is hard to fix.
Is this still a concern in the current Minecraft version 1.6.2 / Launcher version 1.2.1 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
il test it now its not really that much of a problem anyway
These show the minecart bug.
confirmed to still be there. i dont really mind it.
I have gotten another picture for this, and this is still happening in 1.7.2 I think this could be useful for redstone perhaps. Also, I wasn't on a server when I got this photo, it was singleplayer, I have already reported this. (sorry, I didn't know to look
Yes, I'm having this issue too but ti seems to only happen when you load a world and fixes itself after a few minutes.
Couldn't reproduce for 1.13.1.
Second opinion?
Shown to still exist in this video (at 1:15:36), which I'd say is sufficient evidence that this still exists (even though they're using optifine) when combined with the lack of any protocol changes regarding entity motion.
Seems to affect 19w38b, can I request ownership?
Affects 19w39a
Affects 19w40a
Confirmed in 1.16 Pre-release 2.
possibly related: cart went UNDER the rails in 1/.16 RC1 (see attached screenshots)
Affects 1.16.1
In 20w29a.
Relates to MC-9157 and MC-158169
Can confirm in 20w51a.
Can confirm in 21w03a.
Can confirm in 21w05b.
I can confirm in 21w07a.
Can confirm in 21w11a. Relates to MC-2714.
its only visual
Can confirm in 1.17.1. Happens especially with unloading and re-loading chunks, even more often with low render distances.
Can confirm in 23w06a and 1.19.3
Experiencing repeatedly (very, very repeatedly) in 1.20.6. Not just visual, also catches on mobs and other carts. While in motion, passes through most (but not all?) solid blocks unobstructed, will also float adjacent to the track it's allegedly on. Also causes incorrect interactions with powered rails and detector rails; carts will sometimes not be detected. The glitch is currently making it extremely difficult to use Minecarts in the game.
This might be a duplicate of
MC-170907and fixed now in 1.21 Pre-Release 11.21 Pre-Release 2: when reloading the chunks, if one minecart unit (of for example 10 minecarts), some minecarts might bug into each other. This is as if one minecart is moving, but with a way darker shadow.
From my testing and observation this past week, this seems to be fixed with the experimental minecarts from 24w33a. I will be adding the 'experimental_minecarts_fixed' tag, please feel free to remove it if a new case comes up proving that this is not fixed yet.
As an example, here is a tick sprint with minecarts on powered rails:
2024-08-23_12-22-32.mp4
Previously, the minecarts would have cut around the corners going over blocks off of the rails, this no longer occurs.