Possible glitch with articulations

Nuendo 10.2.0.284

I have been editing articulations via expression map in the MIDI editor (on “attribute”) for Joshua Bell violin.
I have three separate tracks to compare versions.

ALL of the articulations disappeared. I do not have any controller or hotkey set to erase articulations.
I have not copied MIDI data from one track to the other.

All of my note data is there. ALL of the articulations are gone.

Absolutely bizarre.