Radio Button Widget: Why conditions are not working with my widget?

"We've reduced the sizes of the four button widgets, so they appear inline as I want them to, but I can't seem to get a condition for one (the first radio on each line, inputs 40 & 41 respectively, once "filled") to show the second one on each line (inputs 417 & 418 respectively) - hope you can help. I have put a condition in, but it doesn't seem to be working - maybe I've made a simple error, but I can't figure out what it is!

This is because the widget currently has set up a default option, this needs to be removed to get it working as expected: 

Please leave it empty and then the condition should work as expected. 

Give it a try and let us know if the issue still persists.

Thanks.