Greetings eicov,

When formatting references cited in a Microsoft Word document, EndNote will look through any library currently open within EndNote at the time when the formatting process begins.  If you’re able to find the reference associated with a particular mismatched citation within your library, take a look at the search field atop EndNote’s Select Matching Reference window to make sure the author’s name is spelled the same as it is within the library and that the citation includes the same year as found within the Year field of this library record.

Please let me know if this helps.