1.32.10 behavior:
• Main Menu music Dynamically loops across all the games soundtrack.
• Ingame music is race specific depending on faction chosen.
• Mapmakers can import custom music and use it properly for their maps.
PTR Behavior:
• Main menu music plays dynamically
• Ingame music is not race specific, it just loops the main menu music
• Mapmakers importing custom music and ordering them to play through triggers is not working
https://www.hiveworkshop.com/attachments/music-test-w3m.403516/
This test map will be your guide, you can see how it works properly in 1.32.10 but broken in the current PTR.