Trusted device confirmation - cannot change to "Only trust once"

dontcaremoveon

Hi,

I would just like to report that on mobile, I cannot change the dropdown during the "trusted device confirmation" process. On the page you can choose to accept or decline the new device/browser. In addition it gives the option for "Trust this device", "Trust this IP address" and "only trust once". I have tried to change to option 2 and 3 but that is not possible on a android chome browser. 

Please check.