[video=youtube;ejl1ePmm1Yw]http://www.youtube.com/watch?v=ejl1ePmm1Yw&feature=g-high-rec[/video]
Works for me. You aren't doing it right.
[ video ] http://www.youtube.com/watch?v=ejl1ePmm1Yw&feature=g-high-rec [ /video ]
(remove teh spaces)
EDIT: AHA! Found the thread you were having the issue in and just tried it. Try removing the s and just do http:// instead of https:// The plugin does not approve of https