When baby Stein is born, his father is seen cradling him in a blanket. However, there is no severing of an umbilical cord shown. Baby Stein can also be seen in a baby grow - despite the fact he has only just been born.
At 05:52 - Young Sara has a handcuff on her left wrist but at 06:07 - It's magically disappeared.
Jefferson's father is revealed to be a U.S. Army soldier assigned to the 10th Mountain Division. His rank is PV2, identified by the single chevron on both of his lapels. His rank is upside down. Further, it is revealed that he died in Mogadishu, Somalia. There are only two men from the 10th Mountain Division that were killed in Somalia, neither of them had the last name of Jackson.
Jefferson's father is wearing Private rank collar devices on his fatigues, except they are upside down. The American flag patch on his shoulder is also backwards. When the flag is worn on the right shoulder, the union (blue square with stars) is located on upper right of the flag, When worn in this manner, the flag is facing to the observer's right, and gives the effect of the flag flying in the breeze as the wearer moves forward. The appropriate replica for the right shoulder sleeve is identified as the 'reverse side flag'.
When Rip and Firestorm rescue Ray's younger self, an on-screen graphic shows the scene taking place in 2014 Star City. But that year, it was still Starling City; while Ray had proposed the name change that year (in "The Calm (2014)"), it isn't mentioned until "Green Arrow (2015)" in 2015 that the change was actually made.