Zigbee2mqtt - removed device, now can't successfully add news ones. Network map broken now too

I was having problems with a Sengled RGB bulb being super slow/laggy and not responding half the time - so I removed it from the zigbee2mqttassitant page, and since then I’m having 2 issues:

  1. The network map is broken (shows no lines between anything other than the controller & cc2530 router) - even though the devices/automations actually work. Link quality is also missing.

  2. When resetting the bulb and putting it back into pairing mode - the device shows up in zigbee2mqttassistant page - but I get the error “Maybe this device is not (yet) supported by Zigbee2Mqtt?” next to it. I thought that maybe it was an issue with that specific bulb - so I tried a new bulb that has never been paired with anything, and I get the same issue with that.

Any thoughts? It’s like zigbee2mqtt barfed when I removed the one bulb.

Stop zigbee2mqtt. Remove your Cc2531. Plug your cc2531 back in. Restart zigbee2mqtt. Re-pair your bulb.

Thanks - will try this.

Does what @francisp suggest resolved your problem? I have a similar error message shown in my zigbee2mqtt assistant when I’m trying to re-pair one of the device.