Currently I have Slash on left click and Devastate on right. If I use Devastate one or more times the next time I try to move by clicking the left mouse button on another area it casts Slash whether there is a monster or not. Basically causing me to have to double click to move out of the way. It sucks when in a boss fight and using both attacks and then expecting to move and instead casting.
I'm not sure if this is intentional or a bug however I do know that it is annoying.
Anyone else having this issue?