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I shared my 573Mb Video to my external drive (which has lots of space) and I could not find it there. After searching everywhere and repeating the process, I found both copies in the Trash!
They worked fine when I moved them to the place I had indicated on my external drive!!

I am baffled.

I have a problem when I export, The slideshow in the storyboard is ok, I preview correctly but when I export to any format some black slides appears with no reason because I have checked in the project and I can no see the problem. Where is the problem? how can I solve it? thank you very much in advance