Confusing/wrong info message while the opencast tab is loading

[pettobia]

Version
3.22

Describe the bug
When opening the opencast tab inside a course, for a short moment while it is loading the info message "There is no standard course playlist for this course. Please try to create one in the action menu." is shown, even though a playlist exists.
When loading is finished, the message disappears, but it is still confusing.