In the GB 1 hour long quick look, towards the end, Jeff stumbles across a glitch that deletes a pocket secretary from his inventory, thus rendering completion of a side quest impossible.
I totally just had the same issue in Hengsha. Only noticed after completing another side quest though so too far in to reload a save. It's not a big deal (and was a different mission to the one Jeff encountered) but yeah, talk about a bad bug to be in a game. Anyone else found this?