Dot shuts off from vibration - Leupold DeltaPoint Pro 1 x 2.5 MOA Red Dot Sight

Just received the optic and mounted it securely with blue loctite. Installed the new battery that came with it. Did some dry fire tests and on the first trigger pull, the dot disappeared. At first, I thought I just lost the dot in the window from movement of the pistol. It's a Walther Q5 Match, the trigger doesn't move the gun especially when dry firing. The next 3 tries the dot stayed illuminated but a couple times when racking the slide to reset the trigger, the dot turned off then came on with the trigger break vibration. This ain't good.