something wrong with aa list

[BoWeRsRaY]

ok, so far both on my sk and my war i have gone to the archetype tab in aa list b4 i had any aa points. it would allow me to pick combat stability and all others on the list. at lvl70 with my sk i got 21aa points so i went to combat stability to put some points in it. i could click it and highlight it but it no longer allowed me to train it now that i had points. with the war. i got to lvl55 i got 2aa points. enough to put into combat stability and the other one. as with the sk i could pick it b4 i had any aa points but once i got 2 aa's i could no longer train it. the whole list was no longer available. as with the other tabs. some in the lists are still trainable but others are not. i do not have sof but i do have the titanium edition to play of course. any suggestions?