Missing training points on 45 level

[Quivrinn]

Hi guys. I was searching a lot to find answer for my question but couldn't find it. I'm 45 lvl FM and when i reset my skill tree I have only 28 skill points to spend. In the description its said that I have 31 available skill points but 3 of them are used. I don't understand. Where do i miss these 3 then?