I have made several slideshows using Lightroom 6. I usually include video clips. I am having problems with a few video clips not playing to end of the clip before going on to the next slide. I can not figure out what is different in these slides. The clips play correctly in the library module. Anyone have a idea what may be causing this issue? I know that size does not matter since I have longer clips playing in other LR slideshows without problems.