Jazz arranging students sometimes make the mistake of writing incorrect notes for the chord symbol that is being used at any one time. Sometimes this confusion can be caused by using the piano as a guide, and not music theory fundamentals.
Notes in a chord can be written differently even though they sound the same. This video deals with the topic of enharmonics and how they are used (both correctly and incorrectly). Please post any questions or comments you have in the comment box below the video.