I've never had any of my items show up in my actvity (I'm also not using circles, so that could be why!). However, if this helps at all, I listed an item at 8:30 yesterday morning. As of 1:00 am this morning, when I did my pre-bed check on things, it had zero views.
Hope the problem fixes itself soon, and all of your items start showing up again in all the right places!