Good afternoon,
I am using the rich text control in version 28. When I load a docx and insert bookmarks with the "inputfieldinsert" function 
it works fine until I save the document and reopen it, at which point the bookmarks are lost. 
With version 15 the bookmarks are also lost, but with the "obsolete" version it works correctly, I can insert bookmarks, save, close and open 
the docx and the bookmarks are not lost. When I say that the bookmarks are lost, I mean that they remain as a text.

I am working with version pb2019 R3 build 2728

Can someone tell me why this happens and how to fix it? Thank you.