Custom CC button

I created all of the ;navigation buttons custom so I can change them as needed per slide. I am not using a playbar.

I created the CC button both by using toggle and incrementing and decrementing the cmdcc  system variable.

Both work on each slide but the command does not carry through from one slide to the next. So it does not work on the overall project. The user has to turn it on every slide.

I did this with Mute/Unmute as well and it works fine. If I click mute on one slide it stays on mute until the user clicks the mute button again.

But with CC if you click CC on the slide it turns the CC on but then it is off again on the next slide.

The CC custom button works correctly if I have the playbar turned on with closed captioning. But I don't want the playbar turned on.

I am using Captivate 2017 with responsive design. Is this a known bug?

Is there a way to fix or workaround?

If it is a bug, does anyone know approx. when a fix may be available?

Thanks!