Overview tab "autoplays" a shadow copy of your last watched series/ show

When logging into the website, the Overview tab displayed a time-lapse of two of my previously watched shows. I can’t tell if this is a new feature being introduced or if it is still being worked on. One of the shadow plays was totally wrong - this was a show I had not watched yet.

The second shadow autoplay was right - except that it was not the most recently played show I had watched last night.