The Bug:
Minecarts that occupy the same space maintain their momentum.
Steps to Reproduce:
Build the setup as shown in the provided attachment below.
Place around seven minecarts on the rail above the diamond block.
Break the emerald block and watch the minecarts closely.
Take note as to whether or not minecarts that occupy the same space maintain their momentum.
Observed Behavior:
The minecarts maintain their momentum, although they are not being pushed by anything but themselves.
Expected Behavior:
Minecarts that occupy the same space would not maintain their momentum.
Linked issues
is duplicated by 57
MC-296142
Minecart bug
Resolved
MC-275620
Minecart bug
Resolved
MC-275775
Stacked Minecarts dont stop
Resolved
MC-258399
Minecart plays sound even when out of rail
Resolved
MC-236030
Flying pig minecart
Resolved
MC-235417
Tnt Bug on Detector rails
Resolved
MC-233322
The motion of stacked minecarts grows very fast and finally become infinite.
Resolved
MC-231871
broken wagons
Resolved
MC-226618
You can make minecarts go on forever without them on a rail
Resolved
MC-222464
Wagons to infinity
Resolved
MC-177028
Vulnerability report on minecarts (all minecarts have this vulnerability)
Resolved
MC-208828
minecraft drives by them self's
Resolved
MC-152267
when eney type of minecart is tp,ed to a location that push of in a direction and if nuthing is bloking then, eg. hill or hole, thay will travel infenetly
Resolved
MC-208061
TNT Minecart moves indefinitely without rail
Resolved
MC-204798
Infinite moving minecarts
Resolved
MC-200510
Minecart
Resolved
MC-180845
The minecart is superimposed on a rail and can glide on a flat infinite.
Resolved
MC-182172
No Track, Minecart
Resolved
MC-174160
TnT Minecart Bug
Resolved
MC-169920
Minecarts moving without rails
Resolved
MC-167909
Minecarts that do not need rails, are steerable in 8 directions, and never lose momentum.
Resolved
MC-162934
so giant momentum building minecart glich
Resolved
MC-161234
Minecarts continue without track.
Resolved
MC-160751
offrail minecart cramming bug
Resolved
MC-6841
Minecarts enter within themselfs and starts moving indepently
Resolved
MC-145779
When pushed by player, multiple Minecarts inside of each other will cause them to continue moving, even when not on rail
Resolved
MC-139520
Bug with minecarts
Resolved
MC-138399
When stacking minecarts in 18w43c and pushing them off the track the continue perpetually in a random direction without stopping.
Resolved
MC-138257
kinda funny tat mine cart glitch
Resolved
MC-119730
Minecart booster
Resolved
MC-120318
If you put around 8+ minecarts on a rail and push them they will go on forever unless hitting an obstruction.
Resolved
MC-118797
minecarts riding without rails
Resolved
MC-108799
Sliding Carts.
Resolved
MC-113244
Minecart stack glitch
Resolved
MC-112284
Minecart(or minecart with chest) bug
Resolved
MC-110523
Minecart Command Blocks Think They Are on a Rail when They Aren't
Resolved
MC-110248
Minecarts gliding forever
Resolved
MC-87829
Sound glitch of minecarts
Resolved
MC-107269
Minecart bug
Resolved
MC-16026
Hopper Cart not stopping at unpowered Powered Rails.
Resolved
MC-8268
TNT Minecarts go on infinitely if multiple minecarts are pushed.
Resolved
MC-82557
This bug allows a "Merged Minecart" to shoot of a minecart track and ride indefinitely off of minecart rails and through water.
Resolved
MC-17934
minecrarts are going to the infinite without rail
Resolved
MC-8558
Non_Stoping Minecarts
Resolved
MC-7787
Minecarts bug. carts group together and dont stop when derailed
Resolved
MC-6853
You can place minecarts inside each other
Resolved
MC-6565
Minecarts can travel without tracks
Resolved
MC-14562
Minecarts go forever when stacked on eachother
Resolved
MC-78210
Minecart bug
Resolved
MC-73313
Minecarts don't stop at the end of the railroad
Resolved
MC-18266
Minecarts can be made to move accross land with no rails or propoltion.
Resolved
MC-15601
minecarts
Resolved
MC-15362
ALL Mine Carts Glitch
Resolved
MC-15178
Multiple Minecarts which stick together leave the rail but still drive
Resolved
MC-14955
Minecarts on the same track when pushed glide across any block
Resolved
MC-13712
Minecart to infinity... and beyond
Resolved
MC-10241
Ridin a minecart to the void
Resolved
relates to 3
Attachments
Comments 120
This bug has been around for a LONG time.
Is this still a concern on Minecraft 1.4.4 Pre-Release? If so, please update the version affected.
Can you replicate this issue in latest version of the minecraft? If so, can you please update the ticket?
Easily reproducible in 13w01b and any other version :/
How is decreasing the hitbox going to fix it? The hit boxen is too small on the minecart in the first place. The way to fix is this to apply some error margin in the equation around the borders of the hitbox(also correct the hitbox).
Maybe adding a little jitter to the entity ejection code?
Confirmed in 13w07a
Can we get a confirmation of whether this happens in 13w10a and an update to the affected versions?
The glitch everyone is seeing is the exact same that made boosters work way back when, when the one cart's mesh intersected the other cart's mesh, causing the physics engine to accelerate both carts.
This is a wierd bug, but is it useful?
This happens all the way up to 13w18c, I hadn't known this was found before.
That's it, I'm never posting bugs again lol, always being duplicated...
ALSO, easier way to do it: Place ONE track, spawn many carts on it, touch carts.
You don't need a ramp, you can just stack minecarts on a one block track, then push them off. If are pushed off a high tower, they will gently float down, slower, and more horizontal then a regular minecart.
When I did it, they had little momentum when pushed and actualy gained momentum.
I think this should stay a future
I dont want this to go cuz i wall doing this on a really high extreme mountin in the snapshot and it flew of the mountin with me in it and i started to glide foward and slowly decend a i was going in a directions fast and slowly decending and i was bossted up by the minecarts slowly falling off but when they did they pushed me up.
so basically this is one of the only planes without mods in minecraft!
Still in 1.7.2
Can a Mod update the affected versions? Thanks.
Confirmed in 14w02c.
confirmed in 14w10c
Is this still a concern in the latest Minecraft version 14w30c? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
Confirmed in 14w30c. It is harder to place them, but it's possible to summon the minecarts on the rail and push them.
Still in 1.8
Still doable in 1.8.1-pre2 via dropping the minecarts from above, they'll stack and when stacked they'll push themselves until blocked by an obstacle.
Still in 1.8.1
Still in 1.8.2-pre1
Still in 1.8.4
Still in 1.8.6
Still in 1.8.5 & 1.8.6
Confirmed for Snapshot 15w31a
Confirmed for 15w45a
Confirmed for 15w46a
Confirmed for 15w47a
Confirmed for 15w47b
Confirmed for 15w49a
Confirmed for 1.8.8 and 1.8.9
Confirmed for 15w51b.
Confirmed for 16w02a.
Confirmed for 16w03a.
Confirmed for 1.9-pre1
Confirmed for 1.9-pre3
Confirmed for 1.9.0
Confirmed for 1.9.1-pre3.
Confirmed for 1.9.3-pre3.
Confirmed for 1.9.4.
Confirmed for 16w20a.
Confirmed for 16w21a.
Confirmed for 16w21b.
Confirmed for 1.10-pre1.
Confirmed for 1.10-pre2.
Confirmed for 1.10.
Confirmed for 1.10.1.
I suggest a discussion be brought up on whether this qualifies as as Works As Intended (or unsolfable, if such a resolution type exists) - as this is the second oldest unresolved bug report, and the oldest unassigned one.
Why the unsolvable/WAI explanation? Minecarts behave as entities, as all other mobs do: if they encounter a force pushing on them, they push away to avoid having huge amounts contained in the same space. Of course, this could be bothersome to some, but how would such a thing be fixed? Enabling cramming on minecarts? You could potentially end up with large numbers of minecarts stuck together on the ground, virtually inseparable save for destroying each and every one- they would be an excellent source of lag, along with a long host of other reasons as to why this mechanic is necessary in their functionality.
Thoughts?
If it was just collision, it would push one Minecart in one direction and the other one in the opposite direction. This behavior is so counter-intuitive that's its definitely not WAI. That something is not assigned to someone doesn't mean too much, it's mainly an information for the person it's assigned to. It basically says: You are the one who would have to fix it. It says nothing about if they try to fix it the next week or so, just that no other developer tries it, because it's not their special fields.
Confirmed for 1.12-pre7
Having difficulty reproducing this in 18w11a
Same, they seem to be splitting off instead of moving as one. Might be fixed, but I'm not super experienced with minecarts...
I can reproduce this in 18w30b.
Can you screenshot or upload the setup you're using?
Affects 1.13.2, reopening.
This has been a long lasting problem. I have also encountered this whilst playing 1.5 and 1.6
confirmed in 1.14.4 pre release-5
19w40a
Confirmed for 19w41a.
Confirmed for 19w45b
Confirmed for 1.15 pre release-1
Confirmed for 20w13b
This still happens on 20w13b (and 20w14infinity, but that’s a joke snapshot)
Confirmed in 20w15a
Can confirm in 20w16a
can confirm 20w17a
Sorry to bother you but when I go to your site and click log and nothing happens
I've noticed that in my redstone world, I have a piston bolt and when I put a lot of minecarts on the first rail and activate the piston bolt, for one it will make a ton of noise, but the minecarts will do this.
Affects 1.16 pre2
Confirmed in 1.16-pre5.
Confirmed in 1.16-pre7.
Affects 1.16 Release Candidate 1
Hi there!
Can confirm in 1.16.1.
In 20w29a!
Hi there!
I can confirm in snapshot 20w30a.
Confirmed for 20w45a
Can confirm for 20w48a.
Can confirm in 20w49a.
Can confirm in 1.16.4
sshhhhht, it's fun and useful 😉
But it's a bug, not gonna lie...
But a useful bug 😉😉😉
Can confirm in 21w03a.
Can confirm in 21w05a.
Can confirm in 21w05b.
Can confirm in 21w06a.
Can confirm in 21w07a.
Can confirm in 1.16.5.
Can confirm in 21w08b.
Can confirm in 21w11a.
Can confirm in 21w13a.
Can confirm in 21w14a.
Can confirm in 21w15a.
Can confirm in 21w17a.
Affects 1.17
Can confirm in 1.17.1 Release Candidate 1.
Recently I have found that stacked minecarts has a infinite motion, making them behaves so strange.I think that may be produced buy the pushment between the minecarts.
When I tested this with about 150 minecarts, pushed them, logged out of the world and re-logged, they started going into the opposite direction because the Motion overflowed into negative infinity.
Can confirm in 21w37a.
I'd like to request ownership of this ticket since the current reporter has been inactive for over a year. I'm willing to keep this ticket updated and will continue to provide all of the necessary details.
Can confirm in 21w40a.
Affects 1.18.1
Can confirm in 1.19.2
Can confirm in 23w03a
Can confirm in 23w04a
Can confirm in 23w06a
Can confirm in 1.20
Can confirm in 23w32a
In 1.20.2 Pre-Release 2
Can confirm in 1.20.4
Can confirm in 23w10a
Can confirm in 24w33a, Minecart Improvements experiments on or not.
Can confirm in 24w34a
Can confirm 24w37a (minecart experiment make raplication harder)
Affects 1.21.4 release candidate 1.
Confirmed in 1.21.4 release candidate 2.
Confirmed in 1.21.4
Since mine carts can push other mine carts, it would cause an infinite momentum if they are inside each other. One will push the other, and the one pushed will push the other, etc. This can possibly be fixed if they decrease the hit box of their mine carts.