No sound with Pirate Audio line out

Hi

I’ve got a problem setting up my Pirate Audio line out hat.
Display is up and running, but I get no sound.
Other posts have succeeded by commenting out #dtparam=audio=on from /boot/config.txt.
This hasn’t worked for me.
Testing with “speaker-test”, or omxplayer with a suitable .mp3 player doesn’t work.

Any ideas?
Steve

aplay -l
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0
Subdevices: 1/1
Subdevice #0: subdevice #0

service status
$ service mopidy status
● mopidy.service - Mopidy music server
Loaded: loaded (/lib/systemd/system/mopidy.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2019-12-05 19:03:50 GMT; 6min ago
Process: 421 ExecStartPre=/bin/mkdir -p /var/cache/mopidy (code=exited, status=0/SUCCESS)
Process: 425 ExecStartPre=/bin/chown mopidy:audio /var/cache/mopidy (code=exited, status=0/SUCCESS)
Main PID: 426 (mopidy)
Memory: 71.5M
CGroup: /system.slice/mopidy.service
└─426 /usr/bin/python2 /usr/bin/mopidy --config /usr/share/mopidy/conf.d:/etc/mopidy/mopidy.conf

Dec 05 19:04:03 pirateaudio mopidy[426]: INFO Starting Mopidy backends: StreamBackend, M3UBackend, FileBackend, LocalBac
Dec 05 19:04:03 pirateaudio mopidy[426]: INFO Audio output set to “alsasink device=hw:sndrpihifiberry”
Dec 05 19:04:03 pirateaudio mopidy[426]: INFO No local library metadata cache found at /var/lib/mopidy/local/library.jso
Dec 05 19:04:03 pirateaudio mopidy[426]: INFO Loaded 0 local tracks using json
Dec 05 19:04:03 pirateaudio mopidy[426]: INFO Starting Mopidy core
Dec 05 19:04:03 pirateaudio mopidy[426]: INFO Starting Mopidy frontends: RaspberryGPIOFrontend, PiDiFrontend, IrisFronte
Dec 05 19:04:04 pirateaudio mopidy[426]: INFO Starting Iris 3.42.2
Dec 05 19:04:04 pirateaudio mopidy[426]: INFO MPD server running at [::ffff:0.0.0.0]:6600
Dec 05 19:04:04 pirateaudio mopidy[426]: INFO HTTP server running at [::ffff:0.0.0.0]:6680
Dec 05 19:04:04 pirateaudio mopidy[426]: INFO Starting GLib mainloop

cat /boot/config.txt | grep -v "^#"

dtparam=spi=on

[pi4]
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
gpio=25=op,dh
dtoverlay=hifiberry-dac