As we can’t comment any updates in the updates forum I’m copying it over here so we can comment on it.
I’m actually getting hopeful.
I’ve finally got mine working to the point of not having to add it back in, but it still drops off of HomeKit but fixes itself now.
I do hope they share with us what the problem was.
daneCS Manager @ Rachio
08/06/2021 Update
Incorporating a new Apple Development Kit (5.3) into the firmware. The Apple engineering team is recommending this as it might correct the disconnect issues customers are experiencing.