Well the logs looks completely different from the original problem, perhaps the logs of bluetoothd can show if there is perhaps another client acquiring the transport which would explain the error:
Nov 25 00:47:50 fireflower pulseaudio[2178]: [pulseaudio] bluez5-util.c: Transport TryAcquire() failed for transport
/org/bluez/hci0/dev_00_18_09_62_4B_98/fd17 (Operation Not Authorized)
Well the logs looks completely different from the original problem, perhaps the logs of bluetoothd can show if there is perhaps another client acquiring the transport which would explain the error:
Nov 25 00:47:50 fireflower pulseaudio[2178]: [pulseaudio] bluez5-util.c: Transport TryAcquire() failed for transport hci0/dev_ 00_18_09_ 62_4B_98/ fd17 (Operation Not Authorized)
/org/bluez/