[Dynamic Tooltip] My Tooltip updates, but extendedtooltip doesn't, is it a bug? [Solved]

[Regno]

How it looks ingame, with this code:

        abil_Q = 'A11T'
        abil_lvl = GetLearnedSkillLevel()
        BlzSetAbilityTooltip(abil_Q, "Spell Title ["+abil_lvl.toString()+"]", abil_lvl-1)
        BlzSetAbilityExtendedTooltip(abil_Q, "Spell Desc ["+abil_lvl.toString()+"]", abil_lvl-1)

I really have no idea why the description is not matching, is it not indexed like 0, 1, 2, 3, 4? I did try 1, 2, 3, 4, 5 too, but same result.

 

[Regno]

Ok seems like description is always at 0