Light seemingly dead after only light range use - Sightmark LoPro Compact Flashlight with Green Laser Sight

I wanted to love this, but the light died. Ran it primarily on a 9mm SBR, nothing extreme recoil-wise. So far it has only been on a few flat range trips, and I noticed the light not working just now while playing with it at home. I tried a brand new battery, having read about battery discharge with some of these units, but no luck. I may have bought it primarily for the laser, but that doesn't mean I am ok with the light not working. If I'm still within my return window, I'll likely be returning this.

On the plus side, the laser is nice, easy to adjust, and seems to hold zero.