The kerfuffle about the rescanned ballots in Fairfax County involved a defective memory card, which was exchanged after both parties signed off on it and the process was conducted properly, fairly, and witnessed by GOP lawyers. There's a Twitter link in the Townhall link above from someone reporting from a top GOP lawyer involved in that process.
Of course, that could be total BS -- will see how it turns out, but I kinda doubt that Townhall and Decision Desk HQ would've called the race for Youngkin without a solid number from Fairfax County, the most populous county in VA.