Just said they had technical issues with Var for the Napoli got but sorted it out and made the right call. Showing var issues can be sorted, unlike the PL var with its blind spotsThey did but it was intentional. The new system is meant to draw a line at the furthest forward point of the defender and show the parts of the body of the attacker which were offside - in this case the line goes through his shoulder, showing his head and top part of his arm were in an offside position.
What was shocking was the time it took. The technology is meant to be instant, with the VAR only needing to check if the forward was active or not.