I attended the first Saturday morning show at Radio City Music Hall this past weekend to see a friend who has been a Rockette for eight years. The show had technical difficulties at the beginning of the finale number that uses the drones and had to stop for five minutes. She said that it's been happening a lot this season. We never did see the drones, just the dance portion of that closing number.
I'll preface this by saying that I adore B.D. Wong. I have only left at intermission once in my 50+ years of theater going and that was during his one man show Herringbone. I felt horribly embarrassed for him and just couldn't sit through a second act.