Failed on first use (returned) - SIG SAUER Romeo4H Hunter 1x20mm Compact Red Dot Sight w/Mount

I was excited to receive the Romeo4H (circle plex reticle). Opticsplanet had the best price and shipped it quickly. I have had very good experiences with Opticsplanet and use them as my main go-to for firearm-related items. So, this low rating is about the optic, not the seller. The optic was turned on at home after mounting and the reticle was bright and clear. I cycled through the four available reticles and everything looked good. Until I took it to the range for the first time to zero and test. The optic worked fine for the first 45 rounds and I was liking the reticle. But then, when firing rounds 45 through 50, the reticle started to flash and act strangely and then turned off completely. I tried a new, known-good battery and it would not power on at all. I then placed this known-good battery in another red dot, and it turned on and functioned flawlessly. I tried a 2nd known-good battery and no luck. The Romeo4H is apparently dead and will no longer turn on. So, it seems that the Romeo4H could not hold up to the relatively mild recoil of (45) 5.56 rounds. Opticsplanet was quick to provide an RMA and shipping label. As of today, the Romeo4H is in the process of being returned to OP via UPS for a refund. I will not buy another Sig Romeo product again as I have lost my trust in the Romeo line, which is unfortunate because I have an old Romeo5 which was been beat up, used with thousands of rounds and it still functions flawlessly. I may have just received a one-off lemon, so please do your own research if considering a Romeo4H.