Transcoding to MP3 Not Working in 3.0.16

Transcoding to MP3 seems to be broken in 3.0.16. It was working in 3.0.9. Please find the attached zip logfiles.

Here's the CLI command I ran on both versions:

/usr/bin/vlc --log-verbose=3 --file-logging --logmode=text --logfile=vlc-debug.log -I dummy --preferred-resolution 240 --play-and-exit --no-loop --no-repeat --no-video --sout-audio --ttl=1 --prefetch-buffer-size=1048576 --prefetch-read-size=1048576 --prefetch-seek-threshold=1000000 https://youtu.be/3jFqhjaGh30 --sout='#transcode{vcodec=none,acodec=mp3,ab=64,channels=1,samplerate=44100}:std{access=file,mux=mp3,dst='jmstest.mp3'}'

3.0.9 generates a valid mp3 file, 3.0.16 does not.