Quest Issue: Invis turn-in bugged?

[evilkorn]

I have done the invis turn in for Staff of Gabstik before, and have known a lot of people that have invis turned in the same way, but this time it failed. This is not a reimbursement request, but I would like to make it know that there may be something wrong with invis turn ins in general.

[Sat Jun 20 09:02:36 2015] Kandin Firepot looks your way apprehensively -- what would you like your tombstone to say?
[Sat Jun 20 09:03:11 2015] You vanish.
[Sat Jun 20 09:03:12 2015] Kandin Firepot regards you indifferently -- what would you like your tombstone to say?
[Sat Jun 20 09:03:42 2015] You appear.

I turned in while I was indifferent and the item was eaten, no text, just poof.

Anyone else seeing odd quest behavior?