Sadly, the first and second-level tech support teams were of no help for this issue. However, I did figure out the problem myself and found a creative solution. If other customers are having the same problem, the solution below might be helpful for them although Ring would probably never recommend it. I determined the problem was occurring because I was using a 3rd party 5V DC extension cord so I could run the power cord through a hole in my wall to the camera outside. Ring apparently thinks their customers have power outlets outside or wants us to buy batteries. I do not have any outdoor outlets, and I don't want to climb up nearly 20 feet on a ladder every time a battery needs to be changed. So I needed to run power through a hole in my wall, but the right-angle barrel connector requires a hole nearly 1" in diameter to fit through and I refused to make a hold that big. Unfortunately, Ring does not sell a power cable that is compatible with their Gen 3 cameras AND has connector that will fit through a 3/8" diameter hole. Therefore I took the factory power adapter cable and cut it into two pieces. There are two small wires inside, a red one and black one. I plugged the barrel connector into my camera outside and threaded the cut cable through my 3/8" diameter hole. Then I stripped off a little insulation and soldered the small wires back together and covered everything up with black electrical tape. PROBLEM SOLVED, but I will never understand why the preview problem occurred only on the ring.com website while the previews worked perfectly on my iPhone and iPad apps with the 3rd party extension cable.