[GAMEPLAY] Kalista level-up bug

Started an ARAM, leveled my skills, all good. Got level 4 and things went weird with her W. The upgrade button wouldn't go away, no matter what. Even leveling up the skill didn't fix the issue.

It was a visual bug, the skill still upgraded as normal on level up, the button itself appeared to be click-through, so no harm done other than serious distraction from the unusual sight.