I am currently having an intermittent charging problem with my MacBook Retina. I “plug” in the charger and it fails to charge the battery, there is no green or orange light. If I tweak the charger then the green light comes on and then the orange. What I mean by tweak is that after plugging in the charger, I slightly move it up without breaking the magnetic connection and then down agina. At which point the light comes on.
I don’t think it is a hardware issue, but could be a software one. However I might be entirely wrong and it’s a problem with the cable! As it’s one of the new cables I don’t have a spare I could try.
At this time, now I know what tweak I need to do, it’s more of an annoyance than a huge problem.