I think it's just a visual bug but still it is very confusing. 1st Rune in secondary path is the one which reduces your Ult CDR when u cast it. As you can see my ult was on CD but it shows 0% of the progress. And for this one I think it wasn't just a visual but a real stat bug too cuz I played with this rune set for quite a while and it felt like ult cdr was way longer than usual.
Sorry if the picture is blurry
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