I run an ATM 3 v4.3 server that uses rftools-1.12-7.12, rftoolsctrl-1.12-1.6.8, and rftoolsdim-1.12-5.05.

Issue: User creates a dimension and uses the teleporter probe to teleport to his dimension.
The user then crashes with a Generating Terrain error.

Here is a link to the server log showing the error the user experienced:
https://pastebin.com/9ca11TtW

I do not have a copy of the user's log, but it does appear to be a crash at the server level. The server did not crash from this issue.

I am not sure if this is a server memory problem or if there is a bug in the mod. Please let me know if you need more details. I do not know what type of dimension he was trying to teleport to, but I can find out.

Thank you

that a player is in a specific dimension is not something rftools specific. That should be a normal vanilla dimension field in level.dat somewhere

I found it. It was listing him as being in dimension 3. I reset that to the overworld and set his other coordinates to be a safe spot.

Any ideas what caused the dimension to throw those errors?

The link to the pastebin is not working

Currently he is not able to login to the server. So I am trying to figure out how to edit his player dat file to reset him back to the overworld. Do you know how to do that?

That is strange. I'll just paste it. It isn't long.

[04:40:26] [User Authenticator #54/INFO]: UUID of player Hexiuh is 7748ef28-8d3f-417d-ad0e-f21df48d4775
[04:40:35] [Server thread/INFO]: Hexiuh[/24.36.27.241:65474] logged in with entity id 4190013 at (-1232.0, 63.0, -486.0)
[04:40:35] [Server thread/INFO]: Hexiuh joined the game
[04:40:35] [Server thread/WARN]: Failed to handle packet for /24.36.27.241:65474
net.minecraft.util.ReportedException: Exception generating new chunk
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:152) ~[on.class:?]
at net.minecraft.world.World.func_72964_e(World.java:309) ~[amu.class:?]
at net.minecraft.world.World.func_72838_d(World.java:1207) ~[amu.class:?]
at net.minecraft.world.WorldServer.func_72838_d(WorldServer.java:1057) ~[oo.class:?]
at net.minecraft.server.management.PlayerList.func_72377_c(PlayerList.java:376) ~[pl.class:?]
at net.minecraft.server.management.PlayerList.initializeConnectionToPlayer(PlayerList.java:165) ~[pl.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.completeServerSideConnection(NetworkDispatcher.java:256) ~[NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.access$100(NetworkDispatcher.java:72) ~[NetworkDispatcher.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:205) ~[NetworkDispatcher$1.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285) ~[gw.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:179) [oz.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:788) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:396) [nz.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524) [MinecraftServer.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_05]
Caused by: java.lang.NullPointerException
at mcjty.rftoolsdim.dimensions.world.terrain.NormalTerrainGenerator.generateHeightmap(NormalTerrainGenerator.java:136) ~[NormalTerrainGenerator.class:?]
at mcjty.rftoolsdim.dimensions.world.terrain.NormalTerrainGenerator.generate(NormalTerrainGenerator.java:241) ~[NormalTerrainGenerator.class:?]
at mcjty.rftoolsdim.dimensions.world.GenericChunkGenerator.func_185932_a(GenericChunkGenerator.java:318) ~[GenericChunkGenerator.class:?]
at net.minecraft.world.gen.ChunkProviderServer.func_186025_d(ChunkProviderServer.java:143) ~[on.class:?]
... 15 more
[04:40:35] [Server thread/INFO]: Hexiuh lost connection: Internal server error
[04:40:35] [Server thread/INFO]: Hexiuh left the game

Specifically I cannot see in NBTExplorer where the rftools information is that tells the game he is in that dimension.