so if you take her to Withers and make her first level Bard does she have the option in abilites tab to pick her extra skills?
after picking her first level exit the screen and then try leveling her up from there... also make sure you actually have Karlach selected as the controlled character when you do the level ups
picking bard should unlock any blockers as they are the 'jack of all trades type' skill class ... thats the only work around i can think of without testing your code
