HomeKit Invitation Not Received

This question has been asked multiple time before, and I think I have tried most of the solutions. I even tried the one where you download the reset profile. That didn't even recognise that I had a home defined???

So the same as before, sending an Invitation to a contact (wife), works on family subscriptions, shared calendars, messages etc, but remains pending in Home.app.

Me: Iphone 14 Plus, Wife: Iphone 15 pro max, all running 17.5.1

Hub is a HomePod mini, also on 17.5

Also added a recently bought Eve Cam

Any suggestions other than what has gone before would be very helpful