Changing the music font resets customizations in Library > Notehead Sets, removing any additional noteheads added to a set.
In the screenshot, the double whole noteheads added to the Scale Degree/Walker 4-Shape set are lost when the music font is changed—even when the same music font is selected.
This is particularly concerning because certain actions can cause Dorico to reset the music font unexpectedly. See: Bug: Edit Line Bodies resets the music font to Bravura.
