I'm using the "Map Categories to Pages" (MCP)  plugin to assign categories to pages. One of MCP's settings is to "Show the Pages on Category pages." When that option is checked, List Category Posts (LCP) will list all pages under their respective categories (and when MCP's "Show the Pages on Category pages" is not checked, LCP doesn't list the pages).
My problem is that the LCP widget does not list categorized pages when viewing posts (e.g. a latest posts front page, or a single post). The LCP widget does list categorized posts as expected. The strange thing is that the LCP widget does list categorized pages when viewing a page!
What can I do to get the LCP widget to list categorized pages?