I have the same problem, except I do not have a multiroom setup. Spotify connect does not start on reboot and when I start it and then attempt to „kill“ spotify connect, the response is that it does not seem to be running.
I have the same problem. The RPI3 does not boot. I have max2play running on 3 other pis but they are earlier models. The RPI3 boots using raspian jessie but not with either the default image or the hifiberry image.