One of the major problems I see with the quest arrow is when you are searching for items in any skyway, like skyclams, crates, or the like, The quest arrow always seems to point to the closest location, regardless of whether that item is actually there. If you get there, pick it up, and pass it, the quest arrow points right back to the exact same spot you just left, even though the item has not regenerated.

This makes searching for items longer than it needs to be.

Can this be fixed so the question points to the closest EXISTING item?

I've had have this problem numerous times before. In order to to fix it I usually just find the next 2 closest items that I need to pick up and follow that route. Going in a circle. I find it is more easier and less complicated then waiting for the item to re-spawn or to go farther away.