In the drawing template, an note is mapped to the value of an Attribute.
When this attribute is updated, the value displayed by the note is not
The options to update the note to the new value is to save the file and
re-open it, or to delete the sheet and undo the deletion, or to edit the
note and cut the mapping value and paste it again.
One of the reasons the note does not update could be that the note is a
legacy note. To upgrade the note and other drafting objects use the
NX10 - Menu --> Preferences --> Drafting --> Workflow --> Version Up.
NX11 and higher --> Menu --> Tools --> Version Up.