Default Low notification volume when playing music (after 14.3.A.0.757)

after updating my firmware to 14.3.A.0.757 I started experiencing this problem:

When I'm playing music any type of alert sound is extremely low, almost inaudible. This also includes google maps navigation voice. I usually pair my phone with my car via bluetooth while driving. If I'm not playing music then the turn by turn voice guidance sounds fine at full volume.

Is anyone else experience this problem? or know how to fix this?

to do a simple test just play music and turn on voice guidance to a random place, see if the volume dips low when you start the navigation