Hi, I recognized that the radar doesn't work for me in ground vehicles like a Slammer or a Kuma lately, neither in commander nor in gunner seat.
(The radar UI will show up but no enemy/empty markers will show on it)

This happens in multiplayer sessions as well as in a self created editor scenarios.

Whereas in helicopters radar just works fine for me.
Thus the problem is also not based on view distance or obejct detail graphic settings since the radar works in helicopters.

I also checked the difficulty settings and set em to regular. No changes...