I'm the Home owner but cant add accessories, why?

Ok, got it solved. Here is what I know in case this helps anyone else.

I happen to have two Apple TVs... one significantly older (dont recall the year/model) and one is the newest 4K (with USB-C remote).

After looking around in the Home app, I noticed that the older Apple TV was acting as the Home Hub and the new Apple TV was on 'standby'.

I unplugged the older Apple TV and waited for the newer 4K model to become the primary. Once that happened, my iPhone magically updated. It now shows the correct status for the resident I made an admin, and it is now showing the accessories that were added.

So there is something funky with that old Apple TV acting as my Home Hub. I dont know why that only affected my iPhone and not my MacBook or the other resident's iPhone, but I'm glad its resolved.

Ok, so on my MacBook, I was able to use the Home app (on Sonoma) to make another resident an admin. From their iPhone, I was able to add the accessories.

So there seems to be something weird with the Home app on my iPhone specifically. Is there a way to reset the Home app on iPhone so it gets with the program?

On my iPhone, I went into Settings -> iCloud and then turned off Home. The Home app stopped working (as expected). I even deleted the Home app and re-installed via the App Store (hoping it would clear cached data). After re-installing and running it, it tells me I have to enable iCloud so I let it.

Unfortunately, its still in the same state. It's like its unaware of the new accessories added to the home and isnt even aware that I made the other resident an admin. So its stuck with some stale data about my home for some reason. I really dont want to have to wipe and set up my iPhone again... so I'm open to suggestions.

Thanks