Did you read that you specified the wrong service?
Wrong:
journalctl -eu dump1090
Correct:
journalctl -eu dump1090-fa
There are basically no logs after dump1090-fa and airspy_adsb get started.
So do a restart for both services and check then:
systemctl restart dump1090-fa airspy_adsb
journalctl -eu dump1090-fa
journalctl -eu airspy_adsb