"Skin unlocked" not really

As many of you i wanted to try the new PROJECT skins (Ashe, Ekko and Katarina) but i'm not able to unlock them, i tried to get them throught the store, and after the item unlock screen showed up, i noticed that the skin were still available to buy i repeated the process wit IP and RP but it was useless i'm not able to get them, i already reported the bug through the bug report site
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