Sand Shower

For some reason when I try and use Sand Shower the jutsu doesnt work, it shows its off cooldown but just doesnt doa nything wen i hit the hotkey/hotslot button. Ive seen this right after it comes off CD and after its been off cooldown for several minutes. I have to spam the shit out of the button to get it to work and sometimes it just doesnt work at all. I have no idea what would be causing this issue. Hunter said he noticed it too but chalked it up to lag. But now we have no lag and its still doing this.

EDIT: I just recently got the Sand Barrage skill and so far it does not seem like it has the same problem as shower so far, and works fine as should it seems.

EDIT: Nevermind last edit.