Tonight I cleaned my RMR lens in anticipation of a pistol competition tomorrow. I drizzled a little water on it and wiped the lens down with a microfiber cloth. When I took a sight picture, the dot was gone. I've tried three batteries, with the same results. Using gen 3 night vision, I can verify that the dot is on and is working, I can turn it off and on using the controls, but I cannot change brightness. It was my understanding that the RMR is moderately waterproof. Has anyone else had this issue? Again, this issue arose immediately after the application of a very small amount of water to the lens, and persists now that the lens is dry.