# Augmentum broken in Lilypond Vaticana notation

While transcribing Vexilla regis I came across a weird issue with augmenta being offset to the right.

\version "2.19.81"
\include "gregorian.ly"

cantus = \relative c' {
$\augmentum g \melisma \flexa \augmentum f \melismaEnd$ \divisioMaior
f $g( \pes a )$
}

cantusLyrics = \lyricmode { tor sus -- pen }

\score { \new VaticanaVoice = "cantus" \cantus \addlyrics \cantusLyrics }


The augmenta from the first ligature are almost hidden by the last ligature.

When I leave the last ligature off, the augmenta are rendered correctly:

What's causing this and how can I fix it? Is there an error somewhere that I'm not seeing?

• I'm afraid I can't help, but I can confirm the same problem with LilyPond 2.18.2. I did have to use the following score block though: \score { << \new VaticanaVoice << \clef "vaticana-fa1" \music >> >> } This appears to be a similar problem to the one described in this mailing list post and in this thread, with a possible workaround described. – Greg Feb 16 '18 at 18:44

I got the same problem and did some research. It looks like that it appears only at a divisio. In some archive of the lilypond mailing list, I found the solution.
If you add two s8 notes here, each augmentum will be rendered correctly:
\relative c' {  $\augmentum g \melisma \flexa \augmentum f \melismaEnd$%
s8 s \divisioMaior f $g( \pes a )$