This is a quote from Lamannia, posted 08-12-2013:

Quote Originally Posted by Wizza View Post
5) Savant Curse: it now stops you in place if you try to cast it while running. It didn't happen before.
Quote Originally Posted by Feather_of_Sun View Post
Thanks for the report, I'll look into this one for a potential patch fix.
3 patches later: no fix yet.