Unfortunately, mission already timed out, so it's a bit hard to tell now, why trigger didn't work, but I credited you with mission points and also changed the Duke's respect. If something like this will happen again please try to report asap, so we can check it.
I'd like to report the same problem. I've sent the gun to the target twice and nothing has updated. I have 3 days left on my timer and the target was Calavera [2037690]. Thanks for any help you can provide.
Edited to add:
I tried sending it for a third time with no luck. I'm using a Mac, and I've checked this on Chrome (my usual browser) and Firefox, which I hardly ever use, so it doesn't appear to be a cache issue.
I am working on Proof is in the Pudding from The Duke. I acquired the requested gun and used it against the target. Once I completed those steps, I went to send the gun to the target as per the mission perimeters. I boxed up the gun and sent it to the target but it did not clear. It was the only gun of that type in my inventory and it is no longer there.
Same here, working the Mission: Proof of the Pudding..Completed first two steps successfully (show complete), then off to send the parcel box to my target. Sent, but no update. Bought same gun again, repackaged it, then sent it again with message this time...no joy. its been about an hour and no update.