Mark as Completed Learn Dash Integration

Hello everybody. I need to get the plugin working together with Learndash. The button “Mark as completed” does not appear at any time and it is not possible to advance class. I have tried all the settings but can’t get the Mark Complete button to appear. If I insert a youtube video without presto player this works, but I need to use Presto to hide the youtube controls and take advantage of all the functionalities that the plugin offers.

Thank you