Although I cannot find anything attached, I understand the problem. Basically, it requires some code improvements on our side, so I have logged this as issue #1273. Meanwhile you can use the following workaround. Process the source document with the following procedure before insertion:
DocumentBuilder builder = new DocumentBuilder(srcDoc);
for (int i = 0; i < srcDoc.getSections().getCount() - 1; i++)
Section section = srcDoc.getSections().get(0);
Section nextSection = srcDoc.getSections().get(1);
if (nextSection.getPageSetup().getSectionStart() == SectionStart.NEW_PAGE)
This code removes all section breaks from the document and replaces "new page" section breaks with page breaks. This should work until we improve ImportNode.