Oh, this totally overwhelms me. I am an eternal beginner in Linux.
Currently I have not installed the dngconverter via AUR, but I had taken the trouble to install it via Terminal using Wine. That was much more up to date.
Yesterday I needed it, but it didn’t work. No problem, I thought and reinstall it: Does not work anymore! So nothing works anymore.
Question: Can you install it on your end via AUR?