When you have the music pack , the jukebox discs don't produce sound .

Expected result:
The jukebox will play music from all discs

Actual result:
The jukebox would not produce any sounds despite the disc is inside with the music pack on.

How to test :
1)Make sure you are in an android device
2)Sign in in Minecraft and purchase the Music package
3) You can hear the background menu music of Minecraft Menu
4) Create a world , get a jukebox and some discs place the discs one by one and you will not hear any music .
It is an issue that does not affect that much but for the players who want to listen music everytime , it's a big issue for them and for players that make musical instruments in their worlds with help of jukebox , it affects them as well.