This is an old post but I just had a similar problem with the GD00Z-4 and the Vera Plus that seemed relative if anyone like me is research inclusion problems with this device.
I just moved to a new house and I brought the GD00Z-4 with me. I tried multiple parings and unpairings of the device. A few with the device sitting right next to my Vera Plus. I knew distance couldn’t be the problem though as the GD00Z-4 at the previous house was further away from the Vera Plus than it is now and there is a z-wave wall switch (with a repeater) between it and the Vera Plus at this house.
I had changed the battery in the tilt sensor as the first step in my troubleshooting. As a last ditch effort, I grabbed the new battery out of the sensor and tested it. It was fine. However, I noticed there was quite a bit of rattling when I shook the sensor. So using my thumb, I pressed the battery hard in the saddle along with the toggle that suppresses when the back cover is on and viola, it worked. I inserted a few shims made out of paper and problem was solved.