Recently upgraded to 2024 and had a similar issue of particular instruments dropping (with wonky syncing for remaining instruments). Experimentation led me to believe it was related to the general use of Bar Settings (is this f5?) and, perhaps more specifically, the swapping out of instruments mid-song via Bar Settings. Took a copy of my original file (created with 2023), opened in 2024, removed all bar settings, and then rebuilt bar settings. All fine. This was just before I received link to v1105 which appears to have corrected the issue as I now get proper generation on the original file.


BIAB/RealBand 2025 Audiophile | GPO 5 | Windows 11 | Martin TR4501