First off, I'm running Skyrim on a PC Windows 7 rig. I completed all the main thieves' guild quests a few days ago, and wanted to go back and pick up all of Devlin's "special items." I returned to the East Empire Company warehouse and picked up the map; the return quest triggered immediately. I then went back to goldenglow estate to pick up the queen bee statue, which I missed the first time around. I picked up the statue, as well as the bee in a jar, and left. Neither triggered a quest (not sure if the bee in a jar is supposed to), and Devlin wouldn't accept the Bee statue. It also apparently doesn't count as a quest item, as I was able to remove it from my inventory and leave it in a trunk in my house (I tried this much later, when I got tired of lugging the thing around.) What's the issue here, and is there any way I can use the console to fix it that won't screw up my game or disable achievements?

As a possible corollary, I experienced another interesting bug prior to this one. When I went back to the Dwemer museum to pick up a Stone of Berenziah I missed, it reactivated the quest Hard Answers. Not sure if this affects or informs the above issue at all, but its definitely a bug.

Thanks for all your help!

I have the same problem, but instead of being unable to turn in the queen bee, I was unable to turn in the East Empire Company Map. I pick it up, but the quest doesn't update, and it doesn't pops up the quest.

I did it Not in order, I gave to Delvin the Eye of the Falmer, and all the others.

How can I fix this???

I have everything on the shelves but the map, I have it in my inventory and no matter what I try, nothing works. Good luck on this one fellow skyrimians.

A tiny update appears!

I loaded a previous save, the two items I forgot to pick up were the Queen Bee Statue and the East Empire Company Map. If I pick and deliver one, the other doesn't update the journal and is not updated as a quest item. If I try to pick up one AND THEN the other, it updates the first item as delivered :/