Whenever I go to Dalaran, Hamuul keeps appearing. He says "I'll meet you there as soon as you conclude you business in Dalaran", and then keeps following me. If i walk around long enough, he will spawn again. Iv'e had like 3 Hamuuls following me at one point. He's supposed to start the Summons from Moonglade questline, but nothing happens. How do I fix this? Is this a normal occurrence?