The pickup truck's license plate is not from any state.
When the principal addresses his students after news about him is made public, he's speaking from a stage and shouting his message. Ojne would think he would be provided a microphone.
When the girls are chatting in the school gym, the basketball scoreboard reads 33-11, with time remaining on the clock. This seems incredibly unlikely unless somebody was testing the scoreboard. The same score and time appear unchanged later in the film.
When Lily Was Blamed For The Hack And Them Gonna Get Her. But they do the same thing with her friends when they were not blamed for the hack.
The guys preparing to hang Bex for being transgender would not be politically correct to say 'she' and 'her' when discussing her.