Having some trouble with a combo system

I used this tutorial to learn a melee combo system, but there’s a problem. Sometimes when the sphere overlaps the collider, sometimes it either doesn’t register the hit or registers the hit twice. Unreal Engine Paragon : Hit Character - YouTube

I’m showing the code below. Anyone have any ideas on how to solve this, because it’s driving me nuts.

Left Hand:

Right Hand:

I think that you will have to use some prints and get deep into the code : P

I tried the line trace method and it works better, so Nevermind.