Hi Noel,
I just verified your method in deleting the 'blue rests' and this worked fine.
I now get full coherence between all the displays.
To adjust note duration I'm using mostly the piano roll as it's more 'pictural' and better fit with audio.
Many thanks for your assistance on this issue.
I'm not sure how this thread can be marked as solved, probably by this forum moderator?

Happy new year

Robert Larrieux