Another thread here reported following https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=997862&archived=no&mbox=no&mboxmaint=norelatedto bug #997862 which seemed to work for me, that is,installing a package libspa-0.2-bluetooth.and I found on the PA devel mailing listBug#993011: pulseaudio-module-bluetooth: no longer detects bluetooth headphonesdo you have libspa-0.2-bluetooth installed?