EDIT: A cleansing of my .lua and .lua.bak files cleared this issue up, if anyone has a similar experience since the patch.
I've been having issues with node routing since the most recent client patch last week. Every time I try to create a gathering route now, whether for herbing or mining, I receive the follow LUA error. After that point, if I try routing, I simply receive a chat box message indicating that a route is present and updated. I don't know if it is, perhaps, possible that a route is being created but not being graphically represented.
Any help would be much appreciated.
Date: 2011-08-13 22:47:18
Error occured in: Global
Message: ..\AddOns\Carbonite\Carbonite.lua line 7633:
attempt to index field 'BAT1' (a nil value)
(tail call): ?