Track load issue on macOS with Mixxx 2.3

I’ve been using Mixxx 2.0 for the last year or so on my Apple Mac - love it, have had no issues. I just updated to 2.3 and Mixxx is recognising all the files I’ve previously had in my directory but now it won’t recognise any new mp3s or mp4s I download. It comes up with a "The File ‘/Volumes/Macintosh HD/Users/XXXX/Downloads/XXXXX’ could not be loaded.

I feel like I might have screwed up the permissions Mixxx needs to access files properly but I’m not sure, if anyone has any advice, please help! I have two tracks I’m dying to mix together!

So you did Library > Rescan and the new tracks did show up in the library?

All other tracks from /Volumes/Macintosh HD/Users/XXXX/Downloads/XXXXX can be played, or is this a new directory?

please take a look at
Edit
https://mixxx.discourse.group/t/mixxx-has-stopped-plaing-newly-downloaded-mp3s/23074/23
and let us know if that fixes it.

I think you posted the wrong link @ronso