Well,
I am now at my holiday home and on the local network.
It seems I am riding a ghost ! As I did not see any wrapper or alias or associated device, I just disabled all devices in the "friendly devices list" of HBB settings and reloaded. Up it went and is available in Homekit, but…
In Homekit, it shows with the old name (before I deleted everything) and all associated devices. I can add or subtract any device in the plug-in, it makes no difference. Everything works, however.
I guess if it stays like that, it will take me to the other side of Xmas. And then, we'll see.
Thanks any way for your support and hard work. I can't begin to think why it is to support all of us and our varying degree of domestics proficiency.
Happy holiday and best wishes.