I just noticed the +/- buttons are no longer there. I'm stuck now with the range I entered some time ago.
Have you selected the checkmark on the Advanced Options?
I still get the Min/Max rating difference.
I have them set as default
I get the same behaviour with Firefox and Chrome on Android (your picture looks like that configuration). On Desktop both work. I'm not sure what the reason is, both browsers not supporting spinners at the same time seems too strange to be true.