Plugin does not do anything if the rythm contains a rest

I try to convert chord symbols into notes with a rythm pattern and this plugin is exactly what I was looking for.
Unfortunately, it does not work when there is a silence in the rythm patter: nothing happens when I click on the "OK" button.
See snapshots in attached gif:
- Case 1 (rythm = chord, bass, chord, chord) works fine.
- Case 2 (chord, silence, chord, chord) : OK has no effect (nothing happens).
As a workaround, I use a bass instead of a silence and then I edit the score to manually change each bass into a silence using the "0" key.