Yes, I'm having the same problem with "EBT Music Player" and "PowerAmp". Other users have reported the same issue in this forum.
Does anyone from Nokia care to comment?
Suggestion 1: Wipe cache partition by accessing your phone's Recovery Mode: https://forum.xda-developers.com/nokia-6/help/nokia-6-ota-update-ddls-t3721424/post75669145#post75669145
Suggestion 2: Factory data reset: https://www.nokia.com/en_int/phones/support/nokia-6-user-guide/reset-your-phone