[Technologist]

Some of us remember about 15 years ago the two frame glitch that occurred every junction as Red Bee inserted or removed the DVE for the squeezback......
In this case I feel that it is how the Sky coder (and may be the glue before it) is reacting to the difference between Red Bees timing and 27MHz clock and theirs .....
It could be it is hunting at a point that the frame stores dont like!
That could be a zone of only a few Microseconds ....