[Rosco74]

Thanks for all your advices, it's a bit late here in europe (4am) so I will check tomorrow if something change after 2 or 3 days of sailing without reloading.

EDIT : before going to bed I had to try hehe. So I sailed for 6 days after re-enabling the 2 wind patches. The weather changed 2 times, the fog and the wind direction changed actually, but the wind remained at 0. Even with a wind of 0 m/s the navigator gives you a wind direction that's why I know when it changed. At the end of my test, after those 2 minor weather changes in 6 days, it finally changed a third time and now the wind is given at 6 m/s. Then I just saved and exited the game.

What do you think? Should I now disable the 2 wind patches as the wind speed seems to be unstucked?

Thanks for the support guyz, this is really appreciated!