I opened the file with BIAB 2019 6 it with no problem. It used P_Whitkr style which is a midi style.

Anyway, I looked at the song in Notation Mode, and used the event editor (#) on the ribbon with the BPDGSMS. It clearly showed a distorted guitar as the very first event. I deleted the event and updated the song and everything worked as expected.

Where did it come from? I have no idea.


BIAB for Windows Version 2019 (643)
Windows 10 (1909)