Storyline Button States

Hi all! I hope you are well?

I'm also hoping you can help me! I have set up a slide with functions that contain hover states that return to 'previous' state when the user hovers out.

In addition, the info button and click button are clickable and should turn green when clicked, which then becomes the 'previous state' if someone hovers out - the info button does this - the click button is set up the same but doesn't work and returns to the normal state when hovered out.

I have even copied the info button and just replaced the icon but it doesn't seem to like the icon that I made outside of Storyline. Does anyone know of this issue?

I have also tried a completely different icon from the Storyline content library and this worked, it just doesn't seem to like icons from outside of Storyline but I don't see why this would be?