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

If this is only happening with one character, you may want to try deleting the files in the 'My Documents' folder (My Documents > My Games > Final Fantasy XIV). This is where your locally saved data is. If you have a corrupt file here, deleting this folder may help with your issue.

If this does not resolve the issue, try running the game in DirectX 9 mode and closing any unnecessary programs in the background.

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