@Blackzappa Can I ask what MuditaOS K your Kompakt is on? As you know, Mudita can’t always control the quirky behavior that happens with some by sideloaded apps.
However, others have reported that they have been able to get Music & Podcasts to work despite some complications at first.
Duraspeed could be the answer, but it could be other apps that might be interfereing.
What apps do you have sideloaded? List all of them.