How come some presentations have an Activity map and others do not?

The map feature was added to the STEM for All Video Showcase starting in 2017, so all video presentations from the 2017 - 2019 Video Showcases have this feature to view and all future showcases will also display this activity. This feature was not available during the  2015 and 2016 Video Showcases, and therefore the presentations from those years can not display it.