Great Game but a serious Bug

I bought the Game and it is very good... Theres just One serious Bug i already reported if u take the knight with the Hammer and get the fast Lerner and blood ...( the One that gives xtra xp) Upgrade First u can get more skill Points then u can spend. If u now Open the Upgrade Menu without having a perk Point u ll Never Be able to close it again... Even though u restart the Game... Ull Not Be able( As i am) to Play the Campagne untill a Patch/ update is released to fix this. So i am really hoping this ll come soon ...

Jamec about Knight's Rush