Fix timing of video captions

I've had this same issue, usually timing the captions again will fix the problem. I don't think that the captions are actually triggered by timeupdates from the video but are actually running on a seperate timing.

You could try executing this JavaScript on slide enter to pause the timeline until the video is able to play.

interval = setInterval( checkExists, 100 );
window.cpAPIInterface.pause();

function checkExists()
{
if ( document.getElementsByTagName( 'video' ).length > 0 )
{
clearInterval( interval );
vid = document.getElementsByTagName( 'video' )[ 0 ];

if ( vid.readyState > 3 )
{
window.cpAPIInterface.play();
}
}
}

Combining video with static objects like text is always challenging. Reason: the video needs to be loaded when entering the slide, but the playhead starts immediately. Problem is worse if the video is heavy.

Solutions? Best solution is to add the static objects in a real video application (Premiere Pro or similar). If you need to do it in Captivate, distribute the video over multiple slides to keep each slide as light as possible. Do never resize the video in Captivate, but import it in the wanted size. You can use the Adobe Media Encoder to resize the video, and lower other settings as well to have the lowest size for acceptable quality.