Possible train destination bug

Info

Please provide the following information:

• BkCommonLib Version (/train version): 1.16.5-v3-SNAPSHOT
• TrainCarts Version (/train version): 1.16.5-v2-SNAPSHOT
• Server Type and Version (/version): git-Purpur-1118 (MC: 1.16.5)

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Bug

Description

I set the destination I want on the train to reach but half the time the train will never path find to that destination when the track switch is right in front of it, or it will go down the track it’s supposed to if it was already set to it and it will still say “can not be reached from here”, and then it will work like it should then stop working. This has been a problem for about a year now at least for me.

Expected behaviour

Trains should path find to the destination 100% of the time.

Actual behaviour

50% of the time gives the error “(destination name) can not be reached from here” and continues down previously selected track.

Steps to reproduce

Please list the steps to take, in order to reproduce the bug.

Additional Information

Video link showing what happens- https://www.youtube.com/watch?v=3TATPmZO5DM

[bbayu123]

I am experiencing the same issue with the following Versions:

BkCommonLib: 1.16.5-v2 Build 1000 TrainCarts: 1.16.5-v1 Build 843 Server: git-Paper-683 (MC: 1.16.5)

Update to latest development builds and try first.

[bbayu123]

Okay so… after further testing everything seems to work as intended even after restarting the server.

The only thing I noticed is one Error in Console but that one is not related to the main issue:

[00:27:14 ERROR]: [Train_Carts] Failed to perform physics on train 'train2' at test_1176_10_-389:
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib] java.util.ConcurrentModificationException
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.common.collections.List2DIterator.next(List2DIterator.java:53)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.components.SignTracker.tryUpdateActiveSigns(SignTracker.java:156)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.components.SignTracker.updateActiveSigns(SignTracker.java:115)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.components.SignTrackerGroup.refresh(SignTrackerGroup.java:196)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.MinecartGroup.doPhysics_step(MinecartGroup.java:1455)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.MinecartGroup.doPhysics(MinecartGroup.java:1384)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.tc.controller.MinecartMember.onTick(MinecartMember.java:2252)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.bukkit.common.internal.hooks.EntityHook.onTick(EntityHook.java:131)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.mountiplex.reflection.util.fast.GeneratedMethodInvoker$mplgen30d3ec7d.invokeVA(Unknown Source)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.mountiplex.reflection.ClassInterceptor$CallbackMethodInterceptor.invokeVA(ClassInterceptor.java:506)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at com.bergerkiller.mountiplex.reflection.util.fast.Invoker.invoke(Invoker.java:29)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.EntityMinecartRideable$mplgen124ee344.tick(Unknown Source)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.WorldServer.entityJoinedWorld(WorldServer.java:960)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.World.a(World.java:955)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.WorldServer.doTick(WorldServer.java:646)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.MinecraftServer.b(MinecraftServer.java:1490)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.DedicatedServer.b(DedicatedServer.java:436)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:1342)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1130)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:291)
[00:27:14 ERROR]: [BKCommonLib] [BKCommonLib]   at java.base/java.lang.Thread.run(Thread.java:834)

Hey, if this is still an issue, can you open a new issue ticket? Closing this for now, since it appears to be resolved for no reason.