Good morning. Sorry you're having issues saving your midi project. The default Style for opening a BIAB SGU project is ZZJAZZ. It's likely a preference has been changed causing the default jazz style to load at opening.

I suggest to first open the preferences and review any backups. It's possible you can load a backup preference setting file that's dated prior to you noticing the change of midi files not loading the correct Style. If there are no backups, in the Options Tab, there's a return to Factory Defaults that may revert saving midi files back to how they were saving originally.

You can also open Preferences and select the Midi File tab and confirm all the settings are correct for your preferred settings.

I created a midi song and saved it as a midi file and reopened the song and the style I used on my project correctly loaded.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
Open Preferences location.jpg (161.02 KB, 91 downloads)
Saved Preferences Backup.jpg (50.91 KB, 91 downloads)

BIAB 2026:RB 2026, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.