Q: mouse scroll

I have updated my mac os to Sierra recently, but i found out that after the update, my mouse won't function properly. As i play minecraft on my MacBook air, it is important for a single scroll to be detected. However, my mouse will not scroll on one single scroll anymore, unlike that before the update. So now i cannot play minecraft. I have tried with a different mouse but it has the same issue. I really need support. Any help will be appreciated.