Continuity mistake: On Max's first run with Sketchy, she spots a police drone and swerves in traffic to avoid it. In the shot where she swerves, Sketchy should be right behind her but has disappeared. (00:11:55)
Continuity mistake: When Max is holding Lydia over the balcony, one wide shot shows that Lydia is hanging at an angle because Max is only holding one leg, but every other shot shows that Lydia's hair and head point straight down. (00:39:20)
Revealing mistake: When Max is holding Lydia upside down from the window, in one shot of Max you can see the harness used to hold Lydia.
Factual error: One of the bases for this show is the idea of computers and electronics being wiped out by an EM Pulse. With the amount of digital communications equipment still operational, it is inconceivable that the whole world system is inoperable, and rebooting of existing servers would have meant that the only information lost was that in transmission at the time of the pulse. A single pulse capable of erasing hard drives would have crushed everything between any two magnetic objects - i.e., parked cars would have slammed together regardless of how many pedestrians were standing between them.
Answer: Max's disease is specifically tailored to work only on cells exhibiting Logan's genome. No one else would notice it.
Phoenix