Yeah, the FAQ said to just put in HTTPS but it has never worked for me. I just click on the Media button, then paste in the Smurfy link with the S added, and it seems to work fine.
your smurfy build can not be a link! if you un-link it, then the site recognizes it, and automaticly creates the smurfy build.
It wasn't a link...posted it the same way I always do For some reason, just that one link wasn't working. Eventually rebuilt the mech from scratch and it worked.