It sounds to me like you're enchanter is trying to mez something that has aggroed the group and your camp radius exceeds your desired mezzing distance.
When you're in chase your campradius determine the radius around the MA that you're willing to engage things, and for the enchanter that includes mezzing.
So it's possible you're trying to navigate around some barrier like a wall or some such, and that path requires you stray quite a ways from the MA.
It might be a pathing issue. The enchanter was going from the steps of Vex Thal (ToL) to the bottom of the east Tegi caves. The camp was at Rumblecrush. It was only happening at the steps so far.
I also noticed something unrelated but on the pathing subject. Trying to path from the north Tegi caves to the quest giver in the northeast had the path go down to the middle east until going in a circle back north. I just ran manually.













