Problem
Protected Contents (e.g. numbers) will be doubled in the visual & the visual export.
Reason is, that in the visual segmentation those protected contents are not taken into account. In the WYSIWYG these protected contents also will not be taken into account (may lead to visual problems). In the export the error will become visible as there the resolved protected content will be injected into parts that initially did not hold these contents.

Solution
Respect the protected contents in the segmentation by replacing the protected content with the source-text, what neccesitates adding them to the WYSIWIG as well, here ideally in the target variant