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

When did this first start happening? Did anything change/update on your PC that coincides with this?

Do you have any other controllers you can test with the game? Does it exhibit the same behavior with the PS4 controller, for instance?

Is this a wired or wireless controller? If wireless, have you tried wired or vice versa?

I'd suggest trying a clean boot. Simply open the task manager and select the 'Start up' Tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

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