Font Weight Radio Buttons Vanished in Highend

I decided to change from the default font to Open Sans and everything was fine after I made the changes. Then suddenly, the weight of the heavier fonts that I set changed. I went back into the Highend Fonts menu and discovered that all of the ‘radio buttons’, for setting the font weights for H1-H6 had all disappeared. I attached a snapshot image for you. I noticed that the issue developed after I changed the navigation font. Hope that you can help. Thanks. -van