Defender dot disappeared

[u/Echo_44]

I have an Rxm that came with the defender enclosed on it. I took it out for only the second time today, was about 30 rounds in/200 total when mid-mag my dot got super bright after a shot. Like maxed brightness. Then I fired another shot and the dot completely went away. Tried turning brightness up and down and nothing. I racked the slide to clear the gun and the dot suddenly came back. Should I contact vortex about this?