Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

If I'm understanding you correctly, after the cooldown is finished, you press the action again and nothing happens but the cooldown resets as if you have done the action, correct?

Did anything change or update on your PC that coincides with this?

What kind of input are you using (mouse and keyboard, controller, etc.)? Have you tried any other input and had the same results?

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!