Captivate transparent buttons remain even though not active in timeline
Hello, Captivate Community!
I'm hoping someone out there can help me with my interactive video. To demonstrate my dilemma, I have created transparent buttons that appear over white boxes when the boxes appear on a grey background. When the button is clicked, it jumps to a bookmark and continues playing until the playhead is paused by another button. But when the button is clicked upon, it still remains throughout the rest of the video. Eventually, with so many transparent buttons covering the screen, the user is in danger of pressing another button sending them back in the timeline to an unintended area of the video.
As you can see here, there are never more than one button active on the timeline.

Does anyone know how to make the button disappear from the video once it is successfully clicked on? I can only do one thing on success, correct? I cannot add two things that occur, can I?
I've posted the captivate project file here:
https://app.box.com/s/1jo3gldssodbx666nasduzd7877w34ey

