Visited states not working on branching scenario

I was able to resolve the issue that you mentioned, and I have included your updated SL file.

This is what I did: at first, I didn't have a clear look at the triggers that you assigned to the clickable rectangles' state change. To alter the default states for a particular object, you don't need to provide additional triggers. Therefore, I erased the previous visited state and disabled all undesirable triggers before creating a new visited state. Additionally I set the slide properties to resume saved state.

Also, I placed a transparent rectangle on top of the rectangles in order to prevent the user from clicking until the audio has been completed. The rectangle disappears once the audio has been completed.

Now it functions as you would expect.

Please review the updated SL file attached and let me know what you think.