Music volume issue in CarPlay

Hi, when I am in carplay and I try to adjust the volume of my music the sound bar says 'voice vol' rather than the music audio volume. Before today this was never an issue, whenever i was connected to carplay and changing the volume the audio volume bar would display and would change the volume to the desired setting.

I have a hyundai i30, I have reset the system and updated it to see if this would fix the issue, and it hasn't.

All i want is to be able to adjust the volume in carplay like normal, as i was able to before.