So when I want to disconnect the Tesla wall charger cable from the car, I press the button on the wand. The lights then change from green (cause it's still charging) to blue but then back to green. If it does turn white, it turns white for a brief moment until I try to take out the handle when it then turns blue or green again and I can't. Typically, I have to press the button and go through the light color cycles four or five times before I can then get the handle out - I think it is when I time my pull to the brief moment (<1 sec) when I have a white light. Anyone else see this? Am I doing something wrong?