I have 4 Z1+ from the same batch and they all do basically the same thing. I am running the latest firmware for them but they exhibit the same behavior no matter what firmware I use. https://imgur.com/pif1YCu. I have all but given up hope of them becoming anywhere near stable. I have them set at auto freq at 1000 but the behavior is the same at all the permutations, i.e factory settings, auto freq on and off, various frequencies from 800 to 1100. Any help would be appreciated.