HomeKit invitation failure

As I was concerned, I have updated 3 phones to 11.2.1 and updated appletv to latest version. Still same error that email address is not registered. I have tried everything I have found out there: remove everyone (I had my son added and working) and then tried to add him and my wife and then could not add either; tried to add me from my wife or sons device - same error; tried complete rebuild of the Home. The crazy thing is that the error pops up so fast that I find it hard to believe that it is even communicating to a server. This issue is the first time I have used these apple forums - is it normal that Apple does not actually respond to any of this?

I believe it's still an iCloud issue. Similar experience with August lock. I can finally now add my wife though HomeKit although HomeKit only recognizes her @me account as a legit one even though that's not her authorized account associated with the Apple universe of services she's registered with.

So the August apps works manually, and automatically when she arrives home yet Siri says "sorry"... blah blah... but works fine for me...

Unfortunately I can't invite my family 😟

On my wife's phone system is up to date (mine as well) and every thing else (connected with iCloud) works properly.

I can see address of my friend in yellow (probably can invite him) but not my wife's and son's address (grey) and doesn't work.

Do you have any other advice than update ?

We were having the same issues - I was up to date, husband was not. I was not receiving his invite at all. As soon as he updates software to current it worked

Shame on Apple for not acknowledging a simple fix for people!

Same bloody problem here too, I am the only one who can use it. Fix please?

As a side note, I have setup and re-setup the device as "new" more times than I would like to admit.

In my scenario, it did not help and I am still left with no solution. 😢

Same issue here. Anyone have a fix?

I have exactly the same problem. No solutions yet 😟

Same issue here if anyone at Apple is listening. Setup garage door opener with Homekit and now cannot share with my wife so she can also use Siri or Homekit to open the garage door. Bummer.

Same issue!

I have reseted my homekit configuration and hard reset Hue Bridge and impossible to make sharing with a guest even though the guest has accepted the invitation.

Having same issue here. Trying to invite both @mac or @icloud version of email address. Both never happen on iPhone 6s running 11.11.2. Appreciate any ideas!

Exact same problem here ! Can't send an invitation to my GF phone. And not the other way around. I can invite all people i know with an apple account, except my GF's 😕

Adding my name to this, sadly. I can’t invite my wife and she can’t invite me with the same error.

Same here. :/

Same problem here 😢

Impossible to invite my GF in my HomeKit.