There’s an error in the RefMan (RIS) Export style for Newspaper Articles. "SN - ISSN" should be "SN - ISSN|" (i.e. missing pipe) This causes Section and Pages to be merged into one field.
Reported on Zotero forums forums.zotero.org/discussion/45287/endnote-to-zotero-newspaper-page-number-problem-and-simple-accessed-info-problem/#Item_10