I am having this issue with some of 1-15 quests at the moment.I did a little more testing with it. I abandoned the quest Pamela's Doll and it went back to working fine, then as soon as it picked it up again it crashed. I'm going to just do that one by hand and see if it works after that.
Manually doing them solves it.
So far from lvl 1>10 the following quests have forced the latest build of HB using this profile to crash WoW.
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The Deepest Cut" QuestId="26915 <-- The rogue classquest that involves doing Evi on dummies.
Princess Must Die! QuestId=88
A Fishy Peril QuestId=40
Log follows (I know that I have a ton of plugins enabled but the same happend with all of em disabled):