Yeelight lightstrip 1s

I just a brand new yeelight light strip 1s, and everything was great with the color and stuff. When I first connected to the Yeelight app it was fine but after a few seconds it just disappear the device area, and I had try so many times to reset it or even change the server for it, and it still disappear right after I connected it please I need help with this

I am having the same problem! Does anyone have a solution