I am authoring my content in Frame 7.2, and importing the Frame chapter files one at a time into RH7. The Frame files have numerous cross-references - some to headings in the same chapter, some to headings in other chapters. When I import the chapters into RH7, the cross-references within that chapter convert to hyperlinks in RH7 and work fine in the .chm file. However the cross-references to other chapters do not - they are formatted as hyperlinks in RH7 and in the .chm, but they do nothing when clicked.
I have tried importing with all Frame files open, or with only the book file open - no difference.