TAB name shortcut not working

On my server, hitting TAB to finish a name in chat is not working. But it works on other servers. One of the servers isnt using spout so I know thats not the issue. If someone could tell me how to fix this I would very much appreciate it.

Plugins:
AntiCheat
BananaRegion
BKCommonLib
bPermissions
BuyCraft
ChestHarvester
ChestShop
Comfort
Essentials
EssentialsChat
EssentialsSpawn
Factions
FoundDiamonds
Jobs
LogBlock
LWC
MagicCarpet
MCBans
mcMMO
Minequery
MobArena
Multiverse-Core
Multiverse-Inventories
Multiverse-Portals
NoLagg
Questioner
Register
SimpleCommandSigns
VanishNoPacket
Vault
War
WorldEdit
WorldGuard
ZavAutoMessage

 

That's a client-side issue, it has nothing to do with what your server runs.

 

But it works fine on other servers.

 

If you're using a plugin that adds colors to the names in tablist or applies any kind of formatting to them, the tab function breaks. I'm not sure if this bug still exists in 1.3

 

I wasn't aware of that. Thanks for the tip.

 

Would essentials do that?

 

its disabled by default, unless you enabled it. if you enabled it, go essentials config.yml and disable colors in tab list.