At exactly 47:36, when Shinji turns around to see the new shirt he got, for a few seconds you can clearly see that the DSS Choker is missing from his neck, only to reappear 10 seconds later.
During the scene when Rei attacks Wunder, there is a close up shot of Shinji screaming, during the close up we didn't see his collar attached to his neck, however, after a flash of explosion, the collar magically appears.
However, this mistake only appears in the home video version.
However, this mistake only appears in the home video version.