I can recreate - I can edit and add to the notes of Wind Sailor 5 from the old Masks DLC as MW shows in the video in post #7, but I can't add to the notes of Zahra Shafik from the new Masks, other fields are editable but not the notes field.

If I make a copy of Zahra I still can't add anything to the notes field.

Looking at the XMl of Zhara (a copy made using drag/drop) I see the text field as follows:

Code:
<text type="formattedtext" />
Whereas normally this is as follows for blank formatted text fields:
Code:
<text type="formattedtext">
	<p />
</text>
If I change the campaign db.xml of the copied Zahra NPC to the second entry above, then I can now edit the notes field.