Crash when tp to base

[Sheodar]

Your GTNH Discord Username

Sheodar

Your Pack Version

2.7.2

Your Server

SP

Java Version

Java 8

Type of Server

Single Player

Your Actions

Back to base used JM or draconic dislocator

Crash Report

Description: Exception in server tick loop

java.lang.NullPointerException
at appeng.me.GridNode.getMachine(GridNode.java:196)
at appeng.me.GridNode.getMachineClass(GridNode.java:86)
at appeng.me.Grid.add(Grid.java:119)
at appeng.me.GridNode.setGrid(GridNode.java:222)
at appeng.me.GridConnection.(GridConnection.java:98)
at appeng.core.Api.createGridConnection(Api.java:110)
at appeng.parts.CableBusContainer.addToWorld(CableBusContainer.java:508)
at appeng.tile.networking.TileCableBus.onReady(TileCableBus.java:180)
at appeng.hooks.TickHandler.onTick(TickHandler.java:186)
at cpw.mods.fml.common.eventhandler.ASMEventHandler_1151_TickHandler_onTick_TickEvent.invoke(.dynamic)
at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54)
at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140)
at cpw.mods.fml.common.FMLCommonHandler.onPostServerTick(FMLCommonHandler.java:247)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:590)
at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:111)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)

Final Checklist

• I have searched this issue tracker and there is nothing similar already. Posting on a closed issue saying the crash still exists will prompt us to investigate and reopen it once we confirm your report.
• I can reproduce this crash consistently by following the exact steps I described above.
• I have asked other people and they confirm they also crash by following the exact steps I described above.

[3jlowes]

The most I could derive from this with limited understanding, google, and ChatGPT is that it is AE2 Grid related.

at appeng.me.GridNode.getMachine(GridNode.java:196)

the NullPointerException is getting thrown when there is an attempt to access a machine associated with a GridNode but the reference is null. (ME Interfaces, Storage bus(s), Export/Import bus(s), P2Ps, Annihilation/Formation Planes, Level emitters.

If I was personally debugging this, I would load a backup and test removing components from around where the crash occurs until you no longer crash. Also does this happen when loading the area in general? Not on teleport?

If someone smarter than me comes along and reccomends something better and more efficient then proceed with their advice.

The most similar crash I could find is here
GTNewHorizons/Applied-Energistics-2-Unofficial#390

[3jlowes]

small small maybe related to export busses with crafting cards disappearing? If you dont use these then disregard

#18835