Vehicle refueling?

Has vehicular refueling changed in any significant way, it seems that my rubber hose and full jerrycan refuses to fill my fully functional gas tank, the same old way was used examine vehicle and refill but it refuses to cooperate

It is a bug, you can get around it by (U)nloading your jerrycan while next to your vehicle. Be careful though ; you can’t choose what tank to put it in and there is another bug where you won’t keep any excess fuel in your jerrycan when the vehicles tanks are full.