Essential Graphics not loading/not editable

Since the update, I can't seem to get Essential Graphics to work (is there a workflow change I'm not getting?)
Before, I would browse for the graphic I wanted to use, drag'n'drop it onto my timeline, where I could double click it, and then be able to edit and modify the text as I wanted. But nowadays, nothing happens when I double click it. In fact, the default text doesn't seem to appear in the playback window at all, almost as if there isn't a graphic in the timeline in the first place.
What am I doing wrong?
