I’ve been using HomeKit for the last few weeks with multiple devices – I can control them directly via the Home app or via Siri voice command. No problems at all. I invited my partner to “my house” in the Home app about a week after I set everything up. It is able to control devices / scenes well directly in the Home application. When she tries to use a Siri command to control a device or a scene, she turns around and tells her that she doesn’t have any X devices in her house. What does it give?