Hello,
I was just searching for the DNG Converter forum and noticed that this forum has a sticky topic to
a very outdated DNG Converter version 8.3:
Where the latest is if I see it right 9.1.2.
Adobe - Adobe Camera Raw and DNG Converter : For Macintosh : Adobe DNG Converter 9.12.1
So some TLC to this forum by Adobe would not harm.