Bug? Wood planks smelting into stone.

I'm running 1.6.2 R0.1 and trying to smelt any wood planks (not logs) will turn them into stone. Anyone else have this problem?

 

What other plugin do you have?

 

Many, lol. I've never had an issue with any of these before, and there are no errors in the .log.

Code:

------------
Plugins (33)
------------
 
TimTheEnchanter    : 3.0
CreeperHeal        : 6.6.1
VoidtoSpawn        : 1.0
Shortify           : 1.6.0
WorldEdit          : 5.5.7
Ultrabans          : 3.1.0
CommandBook        : 2.3
Buycraft           : 6.0
Flight             : 1.3
MuteManager        : 0.12.6
Vault              : 1.2.25-b320
PermissionsEx      : 1.20.1
ConsoleSay         : 1.03
MyHome             : 2.3.1
WorldGuard         : 5.8
Whitelist          : 3.3
MCDocs             : 14.4
RemoteToolkitPlugin: R10_A14.5
SimpleWarnings     : 0.9.3
CoreProtect        : 2.0.8
ReportRTS          : 1.0.0-b110
ChopTree2          : 2.2.2
PrettySigns        : 0.3
CraftBook          : 3.7-SNAPSHOT:3210-ef7a5c3,master
OpenInv            : 2.0.6
SpaceBukkit        : 1.2
Modifyworld        : 1.19.7
SecureChests       : 0.7.3
FoundDiamonds      : 3.6.3
SimplePM           : 1.3.5
ChatManager        : 1.19.1
VanishNoPacket     : 3.18.1
EasyPromoter       : 1.2

 

Command book is the main suspect try removing it testing then report back.

 

Check your CraftBook CustomCrafting file, and remove any recipes that may be doing that.