The displayed formula (diagram) on the chalkboard for menthol is incorrect. Although Stig is right when he writes down a molecular formula of C10H20O for menthol, the diagram shows one too many carbon (C) atoms and 3 too few hydrogen (H) atoms, giving a molecular formula of C11H17O. This means both that the teacher wrote down the wrong structure and that Stig read it incorrectly, too.
When Harper says she got a job with the Hilton Corporation, Jodi says she is an intern at a Residence Inn. The Residence Inn is part of the Marriott hotel chain, not Hilton.
When Jodie gets the text message and video from Liz, it is shown on her phone as if Jodie were the one sending them, not receiving them.