Same problem here though my characters get card feats instead of power feats ... also this happened for 4 out of 6 characters in the party : valeros,ezren,kyra,seoni are maxed out on their card feats when on the other hand lem and harsk did not max out although got some of the same " benefit " until 2-3 lvls ago ( current party members are all 18 , lem and harsk stopped getting multiple card feats at level 14-16 - i cannot remember exaclty when - ) .