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

When did this first start occurring?

Have you tried using directx 9 mode? Does this make any difference?

You can also try a clean boot, go to the task manager and select the start up tab, disable everything on this page and restart the PC. Make sure not to run any programs while playing the game.

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