Hi,
Thank you for the feedback! I took some time to test this on every single major browser on both Mac and Windows platforms on 3 different computers just to be sure (Chrome, Firefox, Safari, Edge and Opera), but in every single case it works all right on my end. The changes reflect on both the settings and the front-end.
This is definitely not a cache problem at this point, but I still suspect something with the browser or something above that, the values can’t just reset randomly on their own, the plugin saves and serves back whatever was entered to the inputs.
Can you please try with a different browser, preferably google Chrome?