That's odd.

Have you tried the standard gremlin-removal techniques?

1) restart BIAB
2) reboot the computer and any external MIDI synth
3) in BIAB, Opt., Return to Factory Settings

If that doesn't do it, reinstall the affected Real Tracks.

You don't have a Soundblaster by any chance, do you?


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.