Can you tell us details about that?
I just leveled 3 toons last month (Ret Paladin, Blood DK, Mage) using Kick's profiles with no addons but Lootfilter and native plugins and they ALWAYS stuck on several places@Deepholm.
I've read some posts about overpopulated bgs with BGBuddies, but i believe this is happening in EU. Rarely see other char doing the same thing than mines in bgs.
This is what i do:
80-82 Hyjal entirely [100% AFKable]
82-84 Archeology-BGs [100% AFKable]
84-85 Twilight. Babysitting just because is so damn fast compare to anything else plus i get nice gear for Heroics/BGs