My screens are in the wrong order.
Occasionally, the screen outputs can come up in the wrong order when connected to the system.
To rectify this, first make sure that Ai is not running. Then go into the Windows Display Settings by right clicking on the desktop and then drag the screens into the correct order, e.g. 1, 2, 3, 4, etc whilst making sure that the top of all screens are vertically aligned.
It is then a good idea to go into your graphics card’s display settings and also changing the order here as well. In most cases this will rectify the issue. It is important to ensure you have the screens connected in the right order from the graphics card. In the R-range of media servers, the top DisplayPort connector is Output 1.