[Gameplay] Smite Bug (Kog Maw)

Just had a game as Kog Maw jungle, noticed for some reason that smite would activate on jungle creeps and give buffs but would do no damage, during this game I also had some weird random issues that I've never had before like Devourer not showing the amount of stacks I had and instead only saying that it does 32 additional magic damage????? Some of the text dialogue on items was either incomplete or gibberish but only for jungle items. Never had a problem like this previously with any other jungler. It also gimped my jungle extremely hard and made the game unbearable. Can anyone confirm whether or not they've had similar issues with smite before? Thanks in advance