What’s the matter with Hue, @tweethue?

Hue lights won't respond on the Home app.

Here is a workaround:

Remove non-working hue bridge connection and then re-add it this way:

In the Hue app: The Matter pairing code for the Hue bridge is generated through Settings > Smart Home > "+" > Other Apps > Get Pairing Code

On the Apple Home App: + > Add accessory > More options... > My Accessory Isn't Shown Here > Enter Set Up Code > Enter code...

This makes Hue available as a generic matter device.