We have the following scenario:
1) Several docx files are processed by the MailMerger to fill some MergeFields.
2 a) On a first approach, we then put the main document part content Objects together to perform a manual concatenation merge.
2 b) On a second approach, we tried the enterprise edition to perform the merge.
Both a) and b) generate invalid hexBinary for paraId and textId of a paragraph.
The approach a) additionally duplicated bookmarkStart ...