Garen bug for Canceled Q denies his ability to use his E

There is a bug for when Garen gets his Q canceled because an enemy, such as an these 2: , stealth just in time to cancel my Q animation. (This part I dunno if it's a bug or not, but not the point of the topic)

HOWEVER, because my Q gets canceled mid-animation, I CANNOT EVEN ACTIVATE MY E. I'm literally spamming it, and it won't go off.

Please fix. It always occurs mid Q animation vs Stealth champions.