Thank you for the answer! I think it started happening as soon when the Shadowbringer patch got release i think. I was making my way to Stormblood at this point.

We did try to update my drivers, graphic cards and windows but nothing change after doing that. We tought it was my old graphic cards before, it was a 960 GTX, but it still occure with my 1660ti at random moment, so i can't be sure whats behind all of this. That's the only two thing i did since then, i didnt try other solution at the moment.