How to prepare FiveM for HudSight custom crosshair
If you don't see a crosshair in this GTA V mode, first check the game graphics settings. If the game render type is set to DirectX 10 or DirectX 10.1, then try to change this option to DirectX 11 (Game settings -> Graphics).
If you use ENB or NVE graphics post-processing software, make sure you have the latest versions of this tools. Old versions are incompatible with HudSight and can cause crashes.