Interesting, I could get the both child devices via Homekit but only the motion would work. Here is my write up on how I worked around if you are interested
Hi Stuey, did you ever get the button press to work? I have the exact same issue and I figured out a way last night without using Amazon.
In the Aqara app, click on your profile in the bottom right corner.
Goto "Connect to Ecosystems"
Select the Matter Icon
Select "Scene and Signal Sync|"
Select "Signal Management"
Click the + in the upper right corner to create a new signal
Under "IF" select "Add"
Scroll down through your Accessories and find your doorbell, select it
Select "Doorbell R…