Is there any way to export Closed Caption sidecar files without having to render the video? I have tried to turn off video and audio but it says I have to render at least one asset to export. It would be great to be able to just export the Closed Caption file by itself (saving to YouTube) to correct the display errors.
Turn off the video track eyeballs. You'll get a black video, but it'll go much quicker and you can just delete it afterwards.
I get my Encore chapter markers in this way.