Not showing when items are in someone's cart anymore?

I've sent a few bags to Thredup over the course of the summer, and at the beginning, everything seemed normal in terms of seeing when buyers had one of my items in their carts. Over the past week I've still made sales, but I'm unable to see if an item is in someone's cart anymore. Is anyone else having this issue? Did Thredup hide that visibility feature from sellers or is it that no one is interested in my items at the moment?