I should state the the origin of the notes is from MIDI import, so perhaps there is a related issue with the import. Here’s the note sequence in Cubase:
Quantized to quarter triplets.
Here’s how it looks in Dorico: (with “played durations” option turned on for clarity)
After requantizing with those settings:
I get this:
When do I “undo” I get this:
I cannot “undo” again to get back to the original.
Here’s the expected result:
What’s going on here? Is that a bug? Is there a workaround?
EDIT: This only reproduces if you have lyrics on the notes.