Got new 30K (SP46). The phone app suggested to update to the latest 3.1.1 firmware and crashed right after start. Got the device updated. Now I can use the phone app, but can not control the music coming from my phone. The music is controllable from the phone itself only.
Have tried a factory reset, pairing and unpairing the phone, had multitasking on and off (yes, with restarting the device each time).