in house lessons on dashboard

Hello, I've set up an opigno site with among other in house lessons functionality. It works well, however I would like a block showing off the latest in house lessons to show up on the dashboard. The "dashboard new content" is a bit too general. So I enabled "Opigno In house training: all in house trainings" in Structure and dashboard layout. After that I used the green button "Add a block" in dashboard and pushed the in house training button. The box however doesn't appear in dashboard, I've noticed the same problem with other blocks I've attempted to activate, they show up as "addable" in the dashboard, but nothing happens when I activate them. What am I doing wrong?