EDIT HERO Button disabled

[Katmai]

Hello all. After tons of search i decided to ask the community. I have this problem with edit hero button at Campaigns. Its greyed out. It used to work fine until update 1.1.1 but after 1.2 it got disabled. I even searched inside data8.orc to look for an answer but nothing. I only managed to check that it something in gamedata/combatscript that might cause my problem but don't take that for granted . I would be grateful if someone has an answer or even an idea for my problem. Thank you very much.