That's not due to the HB engine, but due to specific behaviour of the profile you're running.
Certain quests may be too complex to be handled properly by the profile, so the maker of that profile may have decided not to pick it up.
Of course, it could also be an omission in the design of the profile .. whatever it may be, don't worry too much about it, unless the quest turns out to be essential for your progress.
In that case, contact the maker of that particular profile.