Dxl process failed when handling outline

I’m currently working with dxl-processing to get info about design elements in database. After testing and trying i found out that i cannot use dxlexporter with some outline. This outline is Main outline that comes with Resource reservation template(R6).Error is following:

DXL exporter operation failed

Error occurred during processing of note ID 0x156

Code that generates error:

    Set domparser = dxlsession.CreateDOMParser

Set dxlexporter = dxlsession.CreateDXLExporter

Call dxlexporter.setinput(xmldoc) 'Note 

Call domparser.setinput(dxlexporter)

On Event PostDOMParse From domparser Call PlayWithDXLRoutine

Call dxlexporter.process() 'ERROR WHEN PROCESSING MAIN OUTLINE

Have you had problems like this or am I the first one? I’m using Notes 7.0.2 and Windows XP Pro. Code works perfectly with other design elements and outlines.