Z-wave range of only centimeters

So you mean that some other app was using all the Z-wave resources so the smoke detectors had no change of reporting to Homey?

What I mean is what I wrote, also see this quote (from the linked thread), being the reason this polling was removed from the greenwave app:

“The developer tells me that the power meter has been removed because this particular functionality has bad consequences for the Z-wave network as a whole. It can cause stability issues and loss of connection for (other) devices in the network. It was therefore decided to remove this functionality. I am sorry for this inconvenience”

Exactly the issues I was experiencing and that no longer occurred since the removal of that functionality.