There is a safety feature built into the handle of the RV10. There is a button on the inner handle you need to push before you can turn the handle to open the door. This is to prevent the door from being opened inadvertently.
The mechanism to make this work is pretty simple, but it takes a lot of work to get it to operate smoothly. Tonight I spent the beginning half of my night assembling, sanding, and working this into workable order.
I spent the second half of the night cutting into the bottom of the door to make room for the PlaneAround 3rd latch gearbox.
And, sorry about the terrible camera angle tonight. The door really blocked the view of what I was working on.