Dragonborn Mashup music not working on Relams

After uploading Dragonborn Mashup texture pack as an acitve pack on my Realm world only textures apply, but music that is playing is a default minecraft one.

I tried setting realm world default texture pack and using this Skyrim mashup as global resource and still music that was playing in realm was the default one not from Dragonborn mashup.

Steps;

1. Enter realm world options
2. Go to Add-Ons -> Resource Packs ->My Packs
3. Activate Dragonborn Mash-Up
4. Enter World
5. Then there you can hear default minecraft music, not one from Drahonborn texture pack