Greetings, Spiriel!
Thank you for your patience with the wait for a response to your report. According to the development team, this trouble with Gut Press is known, and they are currently working on finding the source of this. I recommend checking on http://lodestone.finalfantasyxiv.com/ or http://forum.square-enix.com/ffxiv/forums/140 for any further developments. Thanks again for your patience, and for the heads-up!