I viewed the video and listened to the sample.

My questions:

1: What happens if you use a different VSTi instrument for the C minor chord (the triad). Is it exactly the same?

2: What happens if you use a completely different VSTi?

3: Is the VSTi attempting to arpeggiate the chord?

I'm not absolutely convinced that the issue is with BiaB at this stage.


PS: You mentioned "From this design, the BIAB is missing a problem."
That would actually be a good thing, yes?

BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones