Quote
The chords were missing and I could add them again by myself.

Were the chords 'missing' or 'different'?

Exactly what steps did you use to open the EZkeys Track 1CH1.midi file inside BIAB?


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