[GAMEPLAY] Gangplank bug

So I've played Gangplank like 5 times and every time I play him I CS pretty well because he's so easy to CS with and at the end of the game when you see the ending CS I hit around 450 ish and it says I only have 390 or 406 CS on the stats screen. I believe some of the CS that registers with the barrel in-game doesn't register on the stats, even though it shows you in-game it doesn't register. It's deceiving and it needs to be fixed because I actually did have that much CS, but it doesn't give me the gold at the end of the game that equals that CS and shows less CS than in-game.