Twice now, once on a level 1 charger and once on a level 2 charger, I have plugged the car in to charge, seen the green light come on and flash but have come back and found that the charging never happened. Was wondering if anyone else has observed this. I have a charging timer set for 9 pm to use lower cost electrons, but both times it was overnight and charging should have started. Any hints or comments would be appreciated. Love the car otherwise.