I'm on Mac Big Sur OS 11.17.1.
I use BIAB to record my voice over tracks and listen.
Since upgrading my OS this no longer works. I get error message:-

There was an error converting /Applications/Band-in-a-Box/Data/TEMPMAIN.WAV to WAV format. The error is 1718449215

BIAB 2020 - have updated

Any ideas anyone?

You may get a faster response on the Macintosh forum.

Band-in-a-Box for Macintosh

Are you logged into your computer as an admin user or as a standard user? If you're logged in as a standard user problems like this can happen.

To check, go to the Apple menu then System Preferences, then click on Users & Groups. Your username should hopefully say Admin under it.