anyone else having the problem with leap slam where it does a mini leap when i stop casting it?

I've tried hold down the button and pressing individually but still happens

Are there monsters present?

Not all the time, i'm usually just hopping around, go to stop hopping and it does an extra hop randomly and its tiny

This will happen if you are targeting something, are you holding in shift to attack without moving?

my attack speed is so fast it does an extra leap or 2 if im not careful

tap your key instead of holding it