Forge Version

14.23.5.2860

Galacticraft Version

4.0.2.284

Log or Crash Report

https://gist.github.com/Gitcrafter/8a30aa540b91f5059dceec0f70522bdc

Reproduction steps

1. place a Methanesynthesizer into the world
2. place a Mekanism-Gastank containing Hydrogen on the left side of the synthesizer
3. set the Gastank to export the Hydrogen into the synthesizer and see the game crash

does the crash occur if the gas tank is attached to the synthesizer via pressurized pipe?

I didn´t tested it with a pipe, only with a gas tank, that is attached directly to the synthesizer

I tested it with a pressurized pipe and it crashed as soon as I placed the pipe next to the synthesizer, even without the gas tank giving me this crash with only Galacticraft and Mekanism:

---- Minecraft Crash Report ----

WARNING: coremods are present:
MicdoodlePlugin (Galacticraft-1.12.2-4.0.2.284.jar)
MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar)
Contact their authors BEFORE contacting forge

// Don't be sad, have a hug! <3

Time: 2/21/22 8:27 PM
Description: Ticking block entity

java.lang.ClassCastException: micdoodle8.mods.galacticraft.planets.mars.tile.TileEntityMethaneSynthesizer cannot be cast to mekanism.api.gas.IGasHandler
at mekanism.common.util.GasUtils.lambda$getConnectedAcceptors$0(GasUtils.java:32)
at mekanism.common.util.GasUtils$$Lambda$482/394864597.accept(Unknown Source)
at mekanism.common.util.EmitUtils.forEachSide(EmitUtils.java:97)
at mekanism.common.util.GasUtils.getConnectedAcceptors(GasUtils.java:31)
at mekanism.common.util.GasUtils.getConnectedAcceptors(GasUtils.java:42)
at mekanism.common.tile.transmitter.TileEntityPressurizedTube.func_73660_a(TileEntityPressurizedTube.java:80)
at net.minecraft.world.World.func_72939_s(World.java:1838)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Server thread
Stacktrace:
at mekanism.common.util.GasUtils.lambda$getConnectedAcceptors$0(GasUtils.java:32)
at mekanism.common.util.GasUtils$$Lambda$482/394864597.accept(Unknown Source)
at mekanism.common.util.EmitUtils.forEachSide(EmitUtils.java:97)
at mekanism.common.util.GasUtils.getConnectedAcceptors(GasUtils.java:31)
at mekanism.common.util.GasUtils.getConnectedAcceptors(GasUtils.java:42)
at mekanism.common.tile.transmitter.TileEntityPressurizedTube.func_73660_a(TileEntityPressurizedTube.java:80)

-- Block entity being ticked --
Details:
Name: mekanism:pressurized_tube // mekanism.common.tile.transmitter.TileEntityPressurizedTube
Block type: ID micdoodle8#364 (tile.Transmitter // mekanism.common.block.BlockTransmitter // mekanism:transmitter)
Block data value: 2 / 0x2 / 0b0010
Block location: World: (523,4,-67), Chunk: (at 11,0,13 in 32,-5; contains blocks 512,0,-80 to 527,255,-65), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
Actual block type: ID micdoodle8#364 (tile.Transmitter // mekanism.common.block.BlockTransmitter // mekanism:transmitter)
Actual block data value: 2 / 0x2 / 0b0010
Stacktrace:
at net.minecraft.world.World.func_72939_s(World.java:1838)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:613)

-- Affected level --
Details:
Level name: New World
All players: 1 total; [GCEntityPlayerMP['Eragon1997'/3, l='New World', x=523.58, y=4.00, z=-68.49]]
Chunk stats: ServerChunkCache: 289 Drop: 0
Level seed: -3045288156970664845
Level generator: ID 01 - flat, ver 0. Features enabled: true
Level generator options:
Level spawn location: World: (520,4,-71), Chunk: (at 8,0,9 in 32,-5; contains blocks 512,0,-80 to 527,255,-65), Region: (1,-1; contains chunks 32,-32 to 63,-1, blocks 512,0,-512 to 1023,255,-1)
Level time: 612 game time, 612 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 64849 (now: false), thunder time: 175139 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:767)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:185)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 3773191632 bytes (3598 MB) / 5100273664 bytes (4864 MB) up to 8589934592 bytes (8192 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx8G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.5.2860 10 mods loaded, 10 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State  | ID                  | Version          | Source                                  | Signature                                |
|:------ |:------------------- |:---------------- |:--------------------------------------- |:---------------------------------------- |
| LCHIJA | minecraft           | 1.12.2           | minecraft.jar                           | None                                     |
| LCHIJA | mcp                 | 9.42             | minecraft.jar                           | None                                     |
| LCHIJA | FML                 | 8.0.99.99        | forge-1.12.2-14.23.5.2860.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | forge               | 14.23.5.2860     | forge-1.12.2-14.23.5.2860.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| LCHIJA | micdoodlecore       | 4.0.2.284        | minecraft.jar                           | None                                     |
| LCHIJA | galacticraftcore    | 4.0.2.284        | Galacticraft-1.12.2-4.0.2.284.jar       | None                                     |
| LCHIJA | galacticraftplanets | 4.0.2.284        | Galacticraft-1.12.2-4.0.2.284.jar       | None                                     |
| LCHIJA | mekanism            | 1.12.2-9.8.3.390 | Mekanism-1.12.2-9.8.3.390.jar           | None                                     |
| LCHIJA | mekanismgenerators  | 1.12.2-9.8.3.390 | MekanismGenerators-1.12.2-9.8.3.390.jar | None                                     |
| LCHIJA | mekanismtools       | 1.12.2-9.8.3.390 | MekanismTools-1.12.2-9.8.3.390.jar      | None                                     |

Loaded coremods (and transformers): 

MicdoodlePlugin (Galacticraft-1.12.2-4.0.2.284.jar)
micdoodle8.mods.miccore.MicdoodleTransformer
MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar)
mekanism.coremod.KeybindingMigrationHelper
GL info: ERROR RuntimeException: No OpenGL context found in the current thread.
Profiler Position: N/A (disabled)
Player Count: 1 / 8; [GCEntityPlayerMP['Eragon1997'/3, l='New World', x=523.58, y=4.00, z=-68.49]]
Type: Integrated Server (map_client.txt)
Is Modded: Definitely; Client brand changed to 'fml,forge'