Any chance of a vid of that gate not doing its job so I can compare to mine doing it?
Usually these things are a mechanical bind of some sort.
Yep, I will do that tonight. I've tried it with and without the wire part of the gate and different plungers too.
I actually suspect its the CPU board not holding the gate open long enough. I emailed Dave (Ni-Wumph) and he is kindly looking into the matter for me. He also suggested the sound loop may be a driver board issue which I will look into.