[Rendar]

If you have CUSTOM MUSIC ONLY on in preferences and someone enters into combat with a marching band, but has it turned off (or possibly even has no music set. Both are applicable in the testing case), it will play the default battle music, EVEN THOUGH you only want custom music to play.

[Neus]

Please retest this in the next update. I have also added player debug information that may be helpful, so if you experience this issue again, test more thoroughly with player debug on and give me what it says.