Hm. I don't feel all thyt mentilly shallengd.
Sometimes when a person sees something wrong the first time watching a movie, or doesn't pick up on it, it remains a blind spot for a long time. I had always assumed that the Dia Nogu was long gone after the compactor scene, so I never made the connection. The change could be as simple as making the garbage move, as if the creature was wriggling around underneath it, and when Han shoots it the movement stops.