White mensural notes turn black

[martha-thomae]

When entering a piece in white mensural notation, at the moment you are entering the notes of a system in the input editor, the notes are written in white mensural "font." This is fine! However, as soon as you leave that system (and move into the next one), all the notes in that original system are rendered in black mensural font.

Here is a screenshot of how the notes look like when entering them:

Here is a screenshot after I move back to that system, the same notes are shown in black notation: