Why does my mouse cursor keep jumping between two monitors when I'm in a match in Fortnite?
If you're seeing your mouse cursor move on different monitors while you're playing Fortnite, please try the following:
Open Fortnite.
Click on your Profile Icon in the screen's upper-right corner.
Select Settings.
Change the Window Mode to Fullscreen in the Window Mode option.
Note:If this option is already set to Fullscreen, switch it to another mode, then switch it back to Fullscreen.