Losing clips from videopad to vimeo export

[daniv]

Hello!  I am new to film editing.  I created a microfilm with many clips (about 15-20) in a two minute window, on the same video stream, with three different audio threads.  I've repeatedly tried to export to Vimeo but two mini clips (about 3 seconds long each) are lost and are important to the narrative flow.  I've played around with format numbers when exporting, but each time those two clips are lost, and sometimes there is a delay or freeze.  Is there a recommended format scale for exporting a microfilm with many mini-clips to Vimeo?  Thanks.