The red highlighted enemy is the one I'm trying to attack. You can see where I am in the screenshot. The pathing wants very badly for me to walk through the wall.
It's worth pointing out that I wasn't standing in that exact spot the first time I clicked to attack, I was standing a little bit up and a hair to the right. Then I tried again from that spot, and apparently the same pathing issue applied.
(I hope this helps Riot.)
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