Thank you for the reply PrincessMeowMeow.

Can you submit a Final Fantasy XIV system report? Simply go to the 'Config' option on the Final Fantasy XIV launcher and to the right of 'System Information' click on 'Display.'

Does this happen regardless of the dungeon you choose? Or does it only happen with specific ones? What have you tried so far to alleviate the issue?

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