I don’t know why but in my development environment my tasks are disappeared above my cardlist in the mobile GUI. I already tried to add the showgridheader = true property to the cardlist but that does not work. 

In the live environment the tasks are shown above the cardlist. I’m confused!! We didn’t change anything. Same screen type, same cardlist.
The only difference is that we added 1 task! We have now 4 tasks instead of 3?

To test I disabled the task from the subject, but also then no tasks are shown above the cardlist. Please HELP! Our users will not be happy with this?