How to have an interval label on an open string note?

[Photonic]

Greetings. I can't seem to get the usual interval label to show up in an open string note black dot. My root note is indicated in red, but the open string note is a major third, but will only show up as a solid black dot instead of also showing the interval number as the rest of my placed black dots do on the regular fretboard. Thanks for any help.

open string note problem.jpg