Its likely bosses will still go ahead with the errors even after post-production as retaking the scene as there may not be time to reshoot the scene.
The process costs and there could be scheduling conflicts between the actors to re-shoot the entire scene.
As Blue Bloods has been on screens since 2010 and is fast approaching its 13th season, fans could be in for more blunders.
Thankfully for fans, the upcoming instalment will be released later this year, even though season 12 came to an end in May.
Blue Bloods season 13 premieres on CBS on Friday, October 7.