Swain Nevermove Invisibility/Crashing

League has been crashing for me recently (my computer and internet connection are both working fine though) and after I reconnect sometimes Swain's Nevermove turns invisible for the rest of the game. I don't know if other players can/can't see it in the game (no one has complained when it happened, so I assume it's only on my screen). I'm not sure if the disconnection has anything to do with it, but that seemed like something worth noting.