I guess I got used to the way a video sharing site I use does it. If I share the /watch link in the submission page, my submission always is broken in the hopper, and viewers have to use the 'original link' option. I guess I got so used to using youtube's 'share' link I didn't realize I had it backwards here.
Anyway, thanks everyone for your answers. It's nice to actually understand how to make it cooperate.