While Copy paste the content "d’un", after save and re-open the document, word automatically replaced like "dext" i.e. d[some_other_text].
This can't be identified even in open Xml content or track changes and all are proper unicode while cross-checking. It happens in word 2010. I cross checked the same with word 2016 but it's fine and no changes happens. Please suggest me what is the actual issue.