I'm reading what some of you are saying about Vettel's start and it looks like some are not informed about jump start transponders. They are not mounted on cars. They are embedded in the tarmac just before the white box about the same level of the yellow line. It estimates where the car is parked and if the car left the white box before the lights go out or if the car was rolling. Vettel's car didn't set off any of the triggers mentioned.
https://photos.app.goo.gl/3U4BprDcF5cCCggq5