We have been having issues with Bluetooth not functioning, until you pull the batteries, then will work again for some time. Z-Wave has been working 100% all along.
I have a hunch this has been since the ambient temps have dropped. Hasn’t been above freezing here for about 5 days and thats about when it stopped working. Cant be totally positive.
This is on multiple iphones on both the older (1.12.4) and newer version (2.0.6) of the app.