BBC explanation
https://www.bbc.co.uk/sport/football/67562308
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In April, the Uefa football board - an independent advisory group - recommended that "Uefa should clarify that no handball offence should be called on a player if the ball is previously deflected from his own body".
Keith Hackett, former general manager of the Professional Game Match Officials Limited (PGMOL), the English referees' body, told the Daily Telegraph that Uefa did not implement this recommendation for its own competitions.
"Last April, in their guidelines for the upcoming season, the Uefa board recommended that there should be clarity that no handball offence should be called on a player if the ball is previously deflected from their own body," Hackett said. "But this recommendation was not implemented - and Newcastle paid the price at the Parc des Princes."
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How on earth can we have different rules for top competitions