How to get Closed Captions in simulations to display when published to mp4?
I cannot get closed caption text to display when I publish to video.
I have recorded a project using software simulation mode in Captivate 2017 and added closed captions to the slides that contain text-to-audio narration (on slide level). I have selected and formatted the CC option in the project skin and also added an advanced action to the project: cpCmndCC :=1

When I preview the project the captions display as expected, also ok when I publish to HTML5 / SWF. But when I publish to mp4 (our desired format) no text appears in the closed caption footer. I do see the banner at the bottom where the text should be:

I noticed that the option to select Video CC in the slides note panel is greyed out. I'm not sure why, or how to activate this option:

Can anyone help figure out how to get the closed caption text to display when published to mp4?
