Thank you. The mp3 issue crept in with the recent changes to audio output. This affected all releases. This issue has been fixed in the latest releases.I am also running 6.41-btt, thanks.
By the way, since yesterday, every MP3 file generated in my normal recording directory (not the dirwatch directory) has no audio. They claim to have the right length, and some of them are minutes long, but no audio is present. Not sure if that's something on my end, or a change in BTConfig. The Dirwatch files are working fine.