For some reason a number of devices in my setup appear to have simply vanished.
I literally appear to have lost 5-10 devices overnight (out of 40-50 total).
Any idea what I’m looking for here to try to get them back?
Welcome to the forum.
You may not be aware that there are ~5 different Vera devices and 4.5 different firmware versions (UIn) as well as hundreds of Z-Wave devices on the market. You didn’t mention which of any of these things you might be referring to. So, no one will be able to provide you assistance that is of any value.
Post back specific details of what devices you’re referring to and someone may be able to offer help. However, your very best help will come from contacting Vera technical support directly.