
Since attribute value dependent structure cannot be prescribed using the xsd schema, this remains an implementation restriction of Word. Once every custom mark character was moved right next to the footnoteReference tag, our documents appeared correctly.

The problem in our case was that the text containing the custom mark was in a separate text run, like this Where 8 is marker showing in superscript. There were footnotes in the file with custom footnote marks, and it seamed that they are not represented in the format, how Word likes them to.Ĭustom footnote reference characters are represented in the docx file usually as


We had a similar issue with some files at our company and I found what was the problem for us.
