At about 19:30 minutes in there is a scene in which A-train is in discussion with Starlight at a party and the same extra is standing to the side of A-train and in the next cut she is sitting down near him then again standing in the next cut.
At about 37:51-52, a few metallic foil fringes that on Frenchie's shoulder can be seen, but at the very next shot, they are not on where they were.
Additionally, at about 37:53, Kimiko is standing where completely passed through fringes, though at the next shot, her move interacts with fringes as if she passing through them at that moment.
Additionally, at about 37:53, Kimiko is standing where completely passed through fringes, though at the next shot, her move interacts with fringes as if she passing through them at that moment.
At 02:39, on the piece of paper that Billy Butcher wrote the details of Homelander's son's house, he wrote that it was 60 degrees Celsius, but there is nowhere in America that would get to 140 Fahrenheit, except maybe Death Valley. Edit: While it looks like a "C" when just reading the paper, when you watch Butcher write the note between 2:05-2:18, you can see he is not writing a "C" but actually the "@" symbol. So, that line of his note actually reads "Sun 60° @ 9-1."
At 37:36, the flip-up cover of Billy Butcher's gun scope is closed.
At 9:55, when Maeve gets a call and picks up the phone you can see the phone display showing home screen and not the call screen.
Adrian Park is credited twice as Dr. Park, as a guest star and as a co-star.
At 31:50 at the hospital when Elena (who just had her appendix out) is talking to Maeve, she lifts her torso up in discomfort and holds her right hand to her lower left front. The appendix is on the right in the vast majority of humans.
At 10:26, the minister quotes from the "Book of Revelations", plural, but an ordained minister would know that the correct name of the Book is Revelation, singular.