Un-hitable Nexus with Jayce (VIDEO)

The bug is pretty simple but I've only encountered it once. Playing Jayce, I was unable to hit the Nexus in canon-form. I soon as I cast my W it works again.

Steps to reproduce: -Play Jayce -Hit the nexus in canon, I don't know what more to say.

I know this bug is probably SUPER rare and the fact that I only encountered it once makes it hard to reproduce/test/fix, but i thought I'd still post it (just in case it's actually useful to you guys).