It could be an xml schema in InDesign.

This forum is for comments about the larger community of the Adobe forums, which is not what your post is about.Do you have a question about Adobe products? If so, please clarify your question so we can move your post.It is a user forum, and most questions are answered by users. I am really not sure...

The Forum Comments where you posted is for comments and questions about the Adobe Forums.I don't recognize the software you are using by your screenshot. Please identify it and we can move your question to the appropriate forum.

You posted the the Acrobat Reader forum, and you won't be able to fix it in the free Reader. Does it work correctly in LiveCycle? What kind of dialog box is it?