You might try this. Sometimes the font size ends up set very small and you cannot see it in the resulting text box. Try double clicking the text box to open the “Modify Text Box” menu, then reset the font Size to a value like 2” or 4” or whatever. You can also drag the sides of the text box to make it a little larger, just in case it is too small for the selected font size.
I have run into this when switching back and forth between using the model scale and the prototype scale.