When trying to refuel any vehicle or heli with the new fuel truck you get a message that you are not close enough. I am literally touching the other vehicle so I know it is close enough. In addition I brought the Rodina in the same spot and refueled the other vehicle without any issues.

Edit* The truck in question was loaded onto the FF and then unloaded. After the unload we were not able to get into it but after reset it was enterable. However now we cannot refuel anything with it.

Strange I dont have this problem. Try find another truck but this same and try again. Maybe exacly this one its bugged.