Hey there, I guess I am not that late in answering this problem, but I figured it out... this is the same thing that happened with me. When you click on my flow in the sidebar, you will be able to see 3 dots in the top left corner. Click on that and then click on emergency reset, my flow will reset and then you can easily connect your mobile device. The browser may tell you that there is no need of an emergency reset, trust me there is and click "ok".