Storyline 360: radio buttons accessibility with JAWS

I'm still having the problem of JAWS reading "radio button not checked, press the up or down arrow to select" and then nothing happens when arrows are used. It will allow me to select the radio button with the space bar. A user could not be expected to know to try this if they are being told to use the arrow keys. This happens for me in all quizzes, and even when I try using a pick one slide with buttons or object buttons instead of the radio buttons. At this point, I can't use the quizzes. Is there any idea when this will be fixed?