[GAMEPLAY] Tahm Kench's Devour Sometimes Won't Reactivate When Used On Minions and Monsters

I happened to notice that not all times but sometimes I'll devour a minion with Tahm Kench and I can't reactivate the ability to fire the minion. It'll start to cooldown after I devour the minion and no matter how many times I mash w, it won't fire the minion.