Yes Noel I have the 437 update installed

I have also tried to open it as you suggested "File > Open Special > Open Audio w/chords" but still the same

I have the BIAB 2016 437 installed on a 500Go SSD external drive
in order to use it at home and with my laptop and it does the same on both so I don't think it is a key stuck on my keyboard

I will try with RealBand even if I do not use it at all as I have Cubase 8.5 running on both Computers but I will try anyway

Thanks for your great help
Fred

PS: I will let you know about ACW in RealBand

Dedicated DAW - i9 9880H - 32Go Ram - BIAB 2023 UltraPak

Mac Mini M2 Pro 32 Go RAM & Mac Mini M2 Pro - Cubase Pro 12 - Dorico 5 - Camelot Pro 2 - RME Fireface UFX - NuRAD (Berglund Instruments)
@+ SaxFred