Non visible content

Hello!

Last week I create an activity in the H5P Plug In for Moodle (3.7+). It was a column with texts, hotspots, an agamotto and a Drag & Drop activity. I checked it many times and it worked perfectly. But today, when I was checking the whole course, I could not open the activity, but when I click on the Edition option it diplays the whole activity (the texts, the hotspots, etc). So, why is it not showing the activity? Am I missing something? 

Aditional info: I just deleted the Drag & drop activity and it just worked fine... But when creating a new Drag and Drop activity, it goes invisible again.