This has been a glitch for a while now, but recently it's been causing me even more problems. The glitch is as follows:

I'm using a computer. I often press 1, 2, 3 or 4 (to activate skills) numerous times, and not just once, to ensure I use them the quickest possible. However, for some reason, skills will fire a second time after already used once. To make this clear, I recorded a video demonstrating this problem. This is a major bug because it seriously affects gameplay, and many players I've talked to also have this bug. Please make it so that once the button is cllcked, the cooldown time is rigid, and clicked i again won't make it fire again.