I have a random question, I have learned 2 new abilities for a total of 6 but I can't seem to add the most recent ones to my abilities section. I can't seem to make use of the second slot for abilities. I even tried to equip them to the first four slots but that doesn't work either. I can only remove and add my first 4. Could it be because my new abilities are still level zero? Any feedback is welcome!

Thanks!