Unable to add Sonoff ZBDongle-E flashed to OpenThread 2.4.4 to OpebThread Border Router addon

[fathom heath]

Hi all,

Trying to add a second Sonoff ZBDongle-E to my H-A VM I have using TrueNAS / Incus inside 25.04.1, it's passed through fine (I see both Sonoff devices and my Zigbee one works great) but I'm unable to get the Add-on working. Here's the logs and the config screenshots, am I missing anything or anything else I need to look at.

Thanks in advance!