South Africa's Jonathan Kaplan, rated the game's best referee at the peak of his powers, wrote in the Telegraph Newspaper that try should have been awarded and Welsh coach Warren Gatland said the TMO had made at bad mistake.
It was the major talking point of England's 12-6 victory over Wales at Twickenham - Gareth Anscombe's disallowed try in the first half when it appeared that he grounded the ball before Anthony Watson.
England sit second in the Six Nations with two wins from their opening two games.
Following a review, World Rugby said it has "clarified to the Wales team management. that the TMO made an error" and that "Wales should have been awarded a try as the Wales player grounded the ball".
Wales assistant coach Rob Howley said: "It was good to have dialogue with World Rugby".
World Rugby confirmed they had told Wales they should have been given the score even though Jones insists the matter should be consigned to history.
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"I know Warren Gatland spoke to Alain Rolland, and they confirmed that the TMO made a mistake. But we focus on the next two weeks and getting ready for Ireland".
"There was plenty of time left after that decision", he added. "We had a couple of opportunities which we should have taken".
"If you don't then go and play for Wales, it's completely up to the lad". I'm on a good behaviour bond so I've got to be careful what I say, but I just think that once the game's done and dusted that's the game. In Japan they have a great saying: "At full-time there's no side".
England head coach Eddie Jones says the training session with the Georgia Rugby team was a valuable learning lesson for his team.
One other name who featured in Saturday's win but misses out is Saracens lock George Kruis, with Bath's Charlie Ewels - back in the mix after recovering from a hamstring knock - included alongside Kruis' club colleague Nick Isiekwe. He just wants to make the right decision for the right reason. Sometimes you get the rub of the green, sometimes you don't. You can't take back the decision.
England performed a live scrummaging session against Georgia in west London yesterday as part of a two-day visit by the Eastern Europeans deigned to put the Six Nations champions' pack through their paces.