[ARCHIVED] [NKSP] Cannot ship sold items from plopsy (Patch 1.76.81)

Hm... never mind.  Resetting the apartment's mailboxes fixed it.  I'm finding that I need to do that frequently, however, so I'd still have to say it's a bug.

I also have to have my Sim walk outside her apartment before telling my Sim to ship it, or else the interaction will cancel.  At a guess, I'd say that the game thinks the mailbox isn't part of the property because it's in an area the player can't edit.