> But if you are using Docbook 5 DTD-based (and you probably are):
> Oxygen uses Xerces for validation and when parsing XML files with
> associated DTD schemas Xerces will parse and validate the XML document
> before the xi:include's are resolved. Because of this the gathered IDs
> will also be incomplete, even if the master file is validated instead.
> So this is probably your case, you had to add validation units for each
> of the module in order to parse them all and gather IDs.
Some details of this are also discussed in my 3 years old post:
http://www.oxygenxml.com/forum/topic4079.html
