I've got a child document which contains cross references. When I export the child document to PDF, the cross references are fine. However, when I export the master document to PDF the cross references are broken and appear like:
(see ??sub:WMS-Module on page 42).
When I click the reference it goes to the correct place, and 42 is the correct page number, but it doesn't display the reference!
Any ideas why this might be happening?