Unfortunately, because I tried to trancode them ALL before (unsuccessfully by the way), when I click 'Click here to see video eligible for a full-transcode'
there are no filenames listed. Is there an option that I am missing?

thanks for the response, hoping to not have to go back and upload tho.
The problems I struggle with are:
1) when I upload several video files (all mp4s) and transcode them all, most do not transcode (i.e. get the 10 second preview).
2) when I upload a single video file and transcode it, it seems to work...
3) however, even using the single file scenario, I am unable to successfully transcode any mp4 file that is over 100mbs (i.e. all the successful ones have been less than 100mbs).
Cloud Engines tech support has been very helpful in suggesting several different things to try, but yet successful; one thing they noticed was that the mp4 files contained still and video segments, but so do the ones that do transcode.