I'm having the same issue. It will allow me to upgrade leadership skill but not others. I played one match in GW and the option came back to upgrade. I made an upgrade then it went away again. The next GW match it did not let me upgrade after winning.
Do you have enough blue ability material? Scroll down the required material list, it needs more than those. See for mine on their special attack to level 5, same mats required. The scroll bar appears if you start scrolling only.
Do you have enough blue ability material? Scroll down the required material list, it needs more than those. See for mine on their special attack to level 5, same mats required. The scroll bar appears if you start scrolling only.
I can't upgrade leader skill to lvl.4.
And yes, scrolled down while having more than enough of all 3 materials. (Spent the tier1 elsewhere since I can't upgrade)
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http://i.imgur.com/ohQ5CKa.png
Thanks
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Thanks for clarifying, and you are right.
And yes, scrolled down while having more than enough of all 3 materials. (Spent the tier1 elsewhere since I can't upgrade)