Activity Notifications turn off music

Seems like this issue has begun again without an option to turn off the voice over for activity notifications.

Music will be playing from my phone to my headphones via Bluetooth. Once an activity completion notification comes through, it will pause the music and play a loud voice telling me the completed activity.

Then whenever I push play on my phone to resume the music the audio plays from the speakers of the phone instead of headphones.

tThen you have to go back into Settings >Bluetooth and select the headphones again in order to restore the music via Bluetooth on the headphones.

This is incredibly frustrating and interrupts workouts.