edit: thought the problem was solved, it is not.
With the Fairphone Open OS, I have the problem that I can not get into the ringtone settings anymore. (Error message: Settings was closed German: “Einstellungen” wurde beendet.). It looked like I chose a mp3 file with umlauts that caused this, later another file (very short wav) also made this happen.
I solved this issue one time by going to the standard music player, long press on one file (without umlauts or other special characters) and set use as ringtone.
Now the issue is there again, probably because I chose a file as notification tone. This can not be set from the music app.
Does anyone know how to override the notification tone other than from the settings?
And more important, what files can cause this?
I attached some screenshots from ths logs when the settings crash (sorry, I don’t have them as text at the moment)