I am sorry to hear you have been having issues with this. Does this occur with all music sources on your smartphone/tablet/computer? Have you also tried unpairing and re-pairing your speaker?
Bose Community Support
Thanks for updating us on this.
I would highly recommend getting in touch with our Customer Service Team via clicking this link. Then kindly scroll and select your region, once this is done please scroll to Contact Us. The team will be on hand and ready to help.