A project using only a Scaler 3 track with no external instrument routing.
In the editor the notes don’t appear to be cut short, as they are when routing to an external instrument, but when you play the track they are. I also included some pairs of notes where the E was preceded by a C instead of a D, and you can hear they are not cut off, it is only when they are preceded by a D. This varies from chord to chord, but I think it is always when a 5th is preceded by a 3rd in a triad. The notes I have referred to are Scaler’s keys lock placeholder notes, because that is what is recorded, not the ones that you hear which are those of a G chord.
It happens with chords muted or not.
The video you referred to was about a similar but different problem. That happens with a keyboard with polyphonic aftertouch (see the conversation above). The issue we are now discussing is not related to that and happens on any keyboard.