No devices discovered despite shellies listen showing them
No devices are discovered.

All devices show up using `shellies listen`

**Environment:**
 - Shelly device(s): Shelly 1, Shelly 2.5 with current firmware
 - Plugin version: v0.19.1
 - Device running homebridge: Raspberry Pi with Homebridge v1.8.4

What should I check next?

Thanks!
Roman
