Visible crew/equipment: After exiting the turnstile, Sator looks through the window separating the two rooms and watches his past self interrogating the Protagonist in the opposite room. In the shot where his past self is shown hitting the Protagonist across the head with his gun (in reverse), the wheels of the camera dolly can be seen reflected in the window to the left of shot. (01:24:45)
Visible crew/equipment: After going through the turnstile in Oslo, the Protagonist walks up to an ambulance, knocks out the driver and steals it. When he begins to drive off, the shadow of a huge stage light can be seen cast on the side of the ambulance. (01:44:34)
Visible crew/equipment: When Mahir and his partner get on the plane, and they put the guards to sleep with chloroform on the face in the scene of the crash, the shadow of the camera entering the aircraft can be seen on the right side of the screen next to the airplane's entrance. (00:39:27)
Visible crew/equipment: When the Protagonist passes through Sator's turnstile to return to the ambush site on the highway and gets in the inverted car, a cameraman holding the camera is reflected on the wing mirror. (01:31:38)
Visible crew/equipment: When the Protagonist and Neil are in front of the turnstile at the freeport, and they notice the bullet holes on the glass, a cameraman can be slightly seen reflected on it behind the Protagonist just a moment before he tells Neil to not touch the holes.
Visible crew/equipment: When the protagonist inverts himself and gets in the car, a shot from outside reveals a small black car behind him reflected on the bumper. From the immediate wide angle the car is gone. Seemingly, the filming vehicle. According to footage from the making-of, a small black car was the one holding the filming crane. (01:32:00)
Suggested correction: People doing procedures change gloves all the time. There is nothing suspicious about using 2 pairs of gloves in 3 minutes.
He was already done with the procedure when he removed the first pair of gloves. He was never shown putting on the second pair.
It's the same scene replayed, a true editing error.
But this scenes are within about 15 seconds of time - so there is no time to put on another pair.