sync imcomplete:: Cannot write album gain, Batch ID not set

[KeithM]

I was converting Flac files using Tunefusion and the conversion ended with sync incomplete with the following two messages in the log

Error: Cannot write album gain, Batch ID not set [clDSP::EndConversion]
Encoder created a blank file: C:\Users\kmuller\AppData\Local\Temp\_tf-61356D460ADB6A44BA14A455F44BF047-77997.mp3
Encoder created a blank file: C:\Users\kmuller\AppData\Local\Temp\_tf-61356D460ADB6A44BA14A455F44BF047-77997.mp3 for source file: D:\Music\Strunz & Farah\Tales of Two Guitars\ 03 - El Regalito.flac
Error: Cannot write album gain, Batch ID not set [clDSP::EndConversion]
Encoder created a blank file: C:\Users\kmuller\AppData\Local\Temp\_tf-61356D460ADB6A44BA14A455F44BF047-117502.mp3
Encoder created a blank file: C:\Users\kmuller\AppData\Local\Temp\_tf-61356D460ADB6A44BA14A455F44BF047-117502.mp3 for source file: D:\Music\Fleetwood Mac\The Very Best Of Fleetwood Mac\Disc 2\ 04 - Gypsy.flac
Sync incomplete (see detailed log).

Any idea what would cause this (or maybe how to fix)?

thanks
Keith

[Spoon]

D:\Music\Strunz & Farah\Tales of Two Guitars\ 03 - El Regalito.flac

if that is the filename it is possibly illegal on windows, it starts with a space (the filename)