Worldedit-5.2 //copy error

# Attempting to //copy a selection
# This error seems to be linked to furnaces
# Removal of all furnaces in the selection resulted in a successful //copy

177 recipes
27 achievements
11:53:21 [INFO] Starting minecraft server version 1.2.3
11:53:21 [INFO] Loading properties
11:53:21 [INFO] Starting Minecraft server on *:25565
11:53:21 [INFO] This server is running CraftBukkit version git-Bukkit-1.2.3-R0.2
-b2060jnks (MC: 1.2.3) (Implementing API version 1.2.3-R0.2)
11:53:22 [INFO] [WorldEdit] Loading WorldEdit v5.2
11:53:22 [INFO] [SignColours] Loading SignColours v1.4
11:53:22 [INFO] [Essentials] Loading Essentials v2.8.4
11:53:22 [INFO] [EssentialsChat] Loading EssentialsChat v2.8.4
11:53:22 [INFO] [EssentialsProtect] Loading EssentialsProtect v2.8.4
11:53:22 [INFO] MLog clients using java 1.4+ standard logging.
11:53:22 [INFO] [EssentialsSpawn] Loading EssentialsSpawn v2.8.4
11:53:22 [INFO] Preparing level "world"
11:53:22 [INFO] Default game type: 1
11:53:22 [INFO] Preparing start region for level 0 (Seed: -1731079178029652134)
11:53:22 [INFO] Preparing start region for level 1 (Seed: 7718138983806733494)
11:53:22 [INFO] [WorldEdit] Enabling WorldEdit v5.2
11:53:22 [INFO] WorldEdit 5.2 enabled.
11:53:22 [INFO] WEPIF: Using the Bukkit Permissions API.
11:53:22 [INFO] WEPIF: Using the Bukkit Permissions API.
11:53:22 [INFO] [SignColours] Enabling SignColours v1.4
11:53:22 [INFO] SignColours version 1.4 by ichingpow enabled.
11:53:22 [INFO] [Essentials] Enabling Essentials v2.8.4
11:53:22 [INFO] Bukkit version format changed. Version not checked.
11:53:22 [INFO] git-Bukkit-1.2.3-R0.2-b2060jnks (MC: 1.2.3)
11:53:22 [INFO] 1.2.3-R0.2
11:53:23 [INFO] File not found: plugins\Essentials\jail.yml
11:53:23 [INFO] Essentials: Using config based permissions. Enable superperms in
 config.
11:53:23 [INFO] [EssentialsChat] Enabling EssentialsChat v2.8.4
11:53:23 [INFO] [EssentialsProtect] Enabling EssentialsProtect v2.8.4
11:53:23 [INFO] Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? tr
ue; trace: 10]
11:53:23 [INFO] ----- Bukkit Auto Updater -----
11:53:23 [INFO] It appears that you're running a Beta Build, when you've specifi
ed in bukkit.yml that you prefer to run Recommended Builds.
11:53:23 [INFO] If you would like to be kept informed about new Beta Build relea
ses, it is recommended that you change 'preferred-channel' in your bukkit.yml to
 'beta'.
11:53:23 [INFO] With that set, you will be told whenever a new version is availa
ble for download, so that you can always keep up to date and secure with the lat
est fixes.
11:53:23 [INFO] If you would like to disable this warning, simply set 'suggest-c
hannels' to false in bukkit.yml.
11:53:23 [INFO] ----- ------------------- -----
11:53:23 [INFO] [EssentialsSpawn] Enabling EssentialsSpawn v2.8.4
11:53:23 [INFO] Server permissions file permissions.yml is empty, ignoring it
11:53:23 [INFO] Done (1.369s)! For help, type "help" or "?"
11:53:27 [INFO] TJSeabury [/71.192.176.205:50099] logged in with entity id 21 at
 ([world] 91.65625, 170.5, 52.71875)
11:54:05 [SEVERE] java.lang.NullPointerException
11:54:05 [SEVERE]       at com.sk89q.worldedit.bukkit.BukkitWorld.getContainerBl
ockContents(BukkitWorld.java:643)
11:54:05 [SEVERE]       at com.sk89q.worldedit.bukkit.BukkitWorld.copyFromWorld(
BukkitWorld.java:332)
11:54:05 [SEVERE]       at com.sk89q.worldedit.EditSession.rawGetBlock(EditSessi
on.java:433)
11:54:05 [SEVERE]       at com.sk89q.worldedit.EditSession.getBlock(EditSession.
java:365)
11:54:05 [SEVERE]       at com.sk89q.worldedit.CuboidClipboard.copy(CuboidClipbo
ard.java:265)
11:54:05 [SEVERE]       at com.sk89q.worldedit.commands.ClipboardCommands.copy(C
lipboardCommands.java:66)
11:54:05 [SEVERE]       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native M
ethod)
11:54:05 [SEVERE]       at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown S
ource)
11:54:05 [SEVERE]       at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unkno
wn Source)
11:54:05 [SEVERE]       at java.lang.reflect.Method.invoke(Unknown Source)
11:54:05 [SEVERE]       at com.sk89q.minecraft.util.commands.CommandsManager.inv
okeMethod(CommandsManager.java:514)
11:54:05 [SEVERE]       at com.sk89q.worldedit.WorldEdit$1.invokeMethod(WorldEdi
t.java:182)
11:54:05 [SEVERE]       at com.sk89q.worldedit.WorldEdit$1.invokeMethod(WorldEdi
t.java:113)
11:54:05 [SEVERE]       at com.sk89q.minecraft.util.commands.CommandsManager.exe
cuteMethod(CommandsManager.java:501)
11:54:05 [SEVERE]       at com.sk89q.minecraft.util.commands.CommandsManager.exe
cute(CommandsManager.java:419)
11:54:05 [SEVERE]       at com.sk89q.worldedit.WorldEdit.handleCommand(WorldEdit
.java:1250)
11:54:05 [SEVERE]       at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(
WorldEditPlugin.java:197)
11:54:05 [SEVERE]       at com.sk89q.bukkit.util.DynamicPluginCommand.execute(Dy
namicPluginCommand.java:40)
11:54:05 [SEVERE]       at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCo
mmandMap.java:166)
11:54:05 [SEVERE]       at org.bukkit.craftbukkit.CraftServer.dispatchCommand(Cr
aftServer.java:469)
11:54:05 [SEVERE]       at net.minecraft.server.NetServerHandler.handleCommand(N
etServerHandler.java:906)
11:54:05 [SEVERE]       at net.minecraft.server.NetServerHandler.chat(NetServerH
andler.java:866)
11:54:05 [SEVERE]       at net.minecraft.server.NetServerHandler.a(NetServerHand
ler.java:849)
11:54:05 [SEVERE]       at net.minecraft.server.Packet3Chat.handle(Packet3Chat.j
ava:33)
11:54:05 [SEVERE]       at net.minecraft.server.NetworkManager.b(NetworkManager.
java:229)
11:54:05 [SEVERE]       at net.minecraft.server.NetServerHandler.a(NetServerHand
ler.java:116)
11:54:05 [SEVERE]       at net.minecraft.server.NetworkListenThread.a(NetworkLis
tenThread.java:78)
11:54:05 [SEVERE]       at net.minecraft.server.MinecraftServer.w(MinecraftServe
r.java:554)
11:54:05 [SEVERE]       at net.minecraft.server.MinecraftServer.run(MinecraftSer
ver.java:452)
11:54:05 [SEVERE]       at net.minecraft.server.ThreadServerApplication.run(Sour
ceFile:490)