Railcraft: [1.10.2] Carts sometimes forget links
No idea why, but I'm consistently getting some carts that forget they are linked after a game restart.
CovertJaguar
All 34 comments
How?
liach
on 2 Sep 2016
Links should be stored in the persistent entity NBT data and point at the other entities persistent UUID.
This is all handled in LinkageManager.java.
CovertJaguar
on 3 Sep 2016
I mean how to reproduce it. Does it happen when you leave the chunk it's in?
liach
on 3 Sep 2016
Restart game, wasn't enough to reload world.
CovertJaguar
on 3 Sep 2016
Could you state the steps to reproduce it more clearly?
liach
on 10 Sep 2016
Link a bunch of carts, quit the game, start the game, load world, see broken links. That's really all there is to it.
CovertJaguar
on 10 Sep 2016
Can this still be reproduced?
liach
on 28 Sep 2016
This is still the case with beta 2!!!! It forgets ALL links when chunk unloads
TheMrCaveman
on 8 Oct 2016
Then it looks like a bug of storage of Railcraft NBT tags.
liach
on 8 Oct 2016
huh maybe the game does not fully save all when quite save is pressed???
Ristellise
on 9 Oct 2016
are all the entities properly registered in the registries? if not that could cause nbt to not get saved
AEnterprise
on 9 Oct 2016
In my opinion, this is probably an issue regarding NBT loading because the cart linking state always saves when a link is created or broken.
liach
on 11 Oct 2016
For me, I cannot reproduce it. I linked a bunch of carts, walked away, and went back. I saw those carts still linked. Quitting the game does not work either.
liach
on 11 Oct 2016
@liach probably when chunks unload? you may need to walk away far enough.
Ristellise
on 19 Dec 2016
Like 10000 blocks? Or just 1000 block? I tried to go 700 blocks away and return, and the carts remain linked.
liach
on 19 Dec 2016
think like 10000 blocks...
Ristellise
on 19 Dec 2016
Will try later. Thanks for your info.
liach
on 19 Dec 2016
confirmed
xbjfk
on 22 Dec 2016
Does this happen with certain types of minecart or all?
liach
on 3 Jan 2017
May this be a dupe of #585?
liach
on 7 Jan 2017
Experienced the same problem in the current version (10.0.1):
https://www.youtube.com/watch?v=NRi82tY2J1A
- Spawn carts and link them
- Exit world
- Reload world
-> Carts unlinked
I tried to reproduce it in a new world. Sometimes it did work as expected, other times it did not.
Tested it at world spawn and 10,000 blocks away. Doesn't matter if I logged out right besides the train or far away. The result was the same. (Tested in singleplayer, no idea about multiplayer).
Ruuubi
on 31 Jan 2017
@Ruuubi Cannot reproduce it, but I can see some weird behavior in cart physics.
liach
on 2 Feb 2017
Have we come up with a solution?
liach
on 3 Mar 2017
Haven't looked at it recently.
CovertJaguar
on 3 Mar 2017
Might this relate to the loading of nbt data instead of the stroage of it?
liach
on 20 Apr 2017
This issue has been observed several times on the official Railcraft server.
liach
on 26 Apr 2017
@CovertJaguar Can I mark this as can't fix?
liach
on 4 May 2017
No, I have a possible fix in the wild being testing right this moment.
CovertJaguar
on 4 May 2017
https://minecraft.curseforge.com/projects/world-utils#title-7
We should try with this mod.
liach
on 14 May 2017
@CovertJaguar This issue still exists, confirmed on the patron server.
liach
on 7 Jun 2017
The Shunting Aura should provide the info necessary to fix it.
CovertJaguar
on 7 Jun 2017
Can we try with dormant chunk cache disabled?
liach
on 7 Jun 2017
Identify the problem first, then start looking for solutions.
CovertJaguar
on 7 Jun 2017
Closing since we haven't reproduced this in a long time (especially on patron server) and some fixes were already pushed.
liach
on 16 Jul 2017
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Most helpful comment
are all the entities properly registered in the registries? if not that could cause nbt to not get saved