Steps to reproduce:
1. .... create text file with a "Fontwork"
2. .... save via EXIT
3. .... reopen document -> "Fontwork" disappeared
Current behavior: No Fontwork!!!
Expected behavior: Fontwork should be displayed
Operating System: Windows XP
Version: 18.104.22.168 release
As I guess it right you are saving your fontwork containing document as .docx. Please see Bug 51195 for that. As mentioned there it should be possible to save you file as .doc (and ODT of course) without losing the fontwork.
*** This bug has been marked as a duplicate of bug 51195 ***