what works for me is to log in at the skate.reel site with the persona linked to my gamertag.
when i'm not logged in it takes up to two hours for my videos to show up when i search for my gamertag. if i'm logged in and go into my personal reel the clip will be there 10 seconds after the upload is finished in the game.
how do you go to your personal profile? i cant find it anywhere so i have to log out then search up and works, but when logged and search no videos from ANYONE appear