Reviewed my copy from another affiliate. It was fine.
And yes, stuff absolutely does get sent out wrong from time to time. The affiliate I'm at had to take a refeed a while back because they forgot captioning in the majority of the first feed of Entertainment Tonight. At least one station group with centralized master control accidentally ran one segment twice a while back on every affiliate at that hub. Countless examples of a station group getting confused and running "tomorrow's" episode a day in advance. I still recall the example from Drew's TPiR relatively recently that Steve mentioned. And things get segmented wrong all the time, especially as station groups continue to reduce or eliminate staffing and the remaining employees (who are often doing other jobs alongside master control and ingest, themselves once separate jobs) are paid less and less so the positions attract less and less skilled employees.
tl;dr: Stuff happens.