As of July 2019, Wansview cameras are no longer working on FireTVs with FireOS 18.104.22.168. This includes FireTV 4K (Gen2), FireTV 4K Stick, FireTV Cube, Toshiba 4K Fire Edition. Wansview cameras are also confirmed not working on Echo Show 5 devices. At the time of this writing, Wansview cameras are working on older FireTV 4Ks running FireOS 5.2.7 and Echo Show (Gen1), Echo Show (Gen2) and Echo Spot. There is not currently a workaround available. We will be working with Amazon support to try and get these cameras working again.