It was announced that Hamilton would face no further action after he was cleared of failing to ignore double yellow flags.
But Hamilton was hit with a reprimand and Mercedes were fined €25,000 for a separate incident in which he impeded Nikita Mazepin.
The FIA says the “on-board video clearly shows there was no yellow flag displayed, no yellow lights were displayed to that driver and the yellow warning light was not visible on the driver’s steering wheel.”
Their verdict adds: “The Race Director reported to the Stewards that the double yellow flag warning on the FIA Marshalling System was activated at Light Panel Number 6 accidentally, for less than one second.
“Unlike further incidents this year, there was no yellow flag or yellow light displayed to the driver hence no breach of the regulations has occurred.”