you can't leave the calm lands after winning the race and before claiming the sword if that's wot ur doing.

u shud be able to get it without havin to get the sigil first. did u actually get a message saying u had been givien the sigil?

if uve beat the trainer in a race (i.e beat her time not beat her to the finish line) and go to the sword without leaving the calm lands and u still cant get to it, then yeh its proly a glitch soz bro!