added check to prevent publication if there are audio/video clips with no duration
added check to prevent publication if there are audio/video clips with no duration

StoryMaker/storypath,scalio/storypath,StoryMaker/storypath,scalio/storypath,scalio/storypath,n8fr8/storypath,StoryMaker/storypath,n8fr8/storypath,n8fr8/storypath