Red Dimmers - Some secure and some not. Why?

[Bry]

LZW30-SN - Red Series ON-OFF Switch Recognized as Z-wave Secure Switch

Thanks @Eric_Inovelli. You are correct that the switch showed up as Z-wave Switch Secure, when, as you say it might have “failed to include properly.” I am using a SmartThings Hub v3, and adding the switch using the SmartThings Classic app. As per your hypothesis about a flawed inclusion, I removed the switch on the SmartThings app, reset the switch config, reset the power to it via a hard circuit breaker power off/on. Then I added the switch again on the ST Classic app, and this time, the swit…