Having continued to challenge Vettel's race-losing five-second time penalty almost two weeks on from the incident, Ferrari sporting director Laurent Mekies met with the same stewards from Canada at Paul Ricard and spent 40 minutes with them before Practice Two.
Even more worryingly for the team, the upgrades they brought to this weekend's race hadn't performed as well as had been hoped for.
"The situation has improved", he told Sky Sports F1's Ted Kravitz after the race.
The stewards came to the verdict that "no significant and relevant new elements which were unavailable to the parties at the time" had been presented by Ferrari. The latter was similarly rejected as the footage was already available in other videos.
The Australian was later handed two five-second penalties for leaving the track, rejoining unsafely and gaining an advantage, dropping him to 11th and out of the points. Both drivers were summoned to the stewards but no further action was taken. They would be bit players in the story of Hamilton's victory.
Hamilton's difficulties were uncharacteristic on a day when Mercedes had once again been in control during the first two sessions.
Leclerc closed in on Bottas.
US Launches Retaliatory Cyber Attack Against Iran
The next year, Iranian news agencies published footage Iranian officials claimed they had obtained from the RQ-170, CNN reported . Iran denies any involvement. "It's always on the table until we get this solved", the president said in response.
After searing to his record 86th pole position on an afternoon of sizzling heat at the Le Castellet circuit, in the process helping secure a 63rd front row lockout for Mercedes at this weekend's French Grand Prix, the defending five-time world champion was in a playful mood. Hamilton extended his championship lead over Valtteri Bottas.
Vettel reacted by condemning the over-regulation of the sport. "The problem is we are hurt with these things". Let us do what we want.
"To get the best out of people, you have got to deliver the right environment for them - that is so important". If you are unhappy with how we race and how we drive then build different tracks - it's as easy as that. "Just burn the papers".
"Naturally, for me, with my team, I would be having them focus mostly on trying to improve the vehicle, but then we came here and obviously we had that but then I think when I arrived in the morning I heard that Karun Chandhok had.it was Karun Chandhok's video that was the new evidence, and I was pretty relaxed after that".
While Ferrari boss Mattia Binotto agreed with Vettel that the team hadn't made almost enough progress yet, he was feeling rather more optimistic about the future.
Among those highly dubious of exactly what Chandhok's summation of the Montreal incident might mean for Ferrari's case was Lewis Hamilton, who admits that on hearing that the Indian's analysis was to be used felt "relaxed" at the eventual outcome.