Failed after 185 rounds - Trijicon ACOG Mount RM02 LED Red Dot Sight w/ MOA Dot Reticle

I installed this optic on a Glock 19 with a Suarez slide that had been milled for this optic. It performed great for the first 185 rounds. Then the red dot was no longer visible. I could see a thin red horizontal line near the bottom of the sight glass, but no dot. I have back-up suppressor sights, so I know I was looking in the right place for the dot. After a couple of minutes it returned. Then vanished again after firing a few rounds. This happened several times. Each time I stopped firing and investigated the issue, with the dot eventually returning. Then I fired 15 rounds without stopping when it disappeared. It would vanish for a shot, then reappear after another shot. As I researched this, I realized this has happened to a lot of other people. This is on my daily cc pistol. If I can't trust it to be dependable, I'm better off without it.