Recently, WAR Dev Keaven started up a new thread to discuss a pesky bug with one of the bosses in Thanquol's Incursion. Specifically, it has to do with the Cloud of Corruption. It's an interesting bug, you can read all about it here if you want.
I feel this fails as an RvR doungeon more becuase people instance hop intil they have no opposition, leaving anyone who *does* want to have an honest fight left with an empty instance as well. I'm currently thinking of limiting TI to just one, 48v48, instance. I dunno... we'll see.