It's working fine for me, my feedback for others of not working. Don't just click and click the buttons, after you change your current model go to console and then click replay XHR request, wait for 5-10 seconds. Then press ok, then continue.
Or
In your case, you need to open the developer mode while using this script. Because it works for me in second time, not just second but third charm without repeating it over and over.
It's working fine for me, my feedback for others of not working. Don't just click and click the buttons, after you change your current model go to console and then click replay XHR request, wait for 5-10 seconds. Then press ok, then continue.
Or
In your case, you need to open the developer mode while using this script. Because it works for me in second time, not just second but third charm without repeating it over and over.