Hmmm

I don't get any split second yellow screen, is that a 'hint screen' you mention?

Does it have any text?

How big is it? Does it cover the entire chord display area before the chords show? If so, then that is just part of the software initialization processes.

If it looks more like a smaller hint, then these are my hint settings, if that helps:

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BIAB & RB2024 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