hello and sorry in advance for my English, I wonder if this is really a problem or if it's simulation. When there is a crosswind, I observe a difference between the desired heading and the one displayed on my screen. help or advice? Thanks a lot !!!

 

8 hours ago, Jux30 said:

I observe a difference between the desired heading and the one displayed on my screen

do you mean the difference between desired magnetic track & the compass / gyro heading of your aircraft ..... the difference being drift due to crosswind.

Note that on the ND that it is a user (not cockpit) selectable option to have either track up or heading up. Airlines have many options such as Kg to Lbs, Feet or Meters etc to customize their displays for their particular operations.