Great! That fixed it - I had to allow access to all files (I couldn’t find any way on a Mac to allow access to a specific folder) but that seemed to fix it.
Actually this did fix it for most files, but some are still greyed out.
For these tunes, when I do “show in finder” in rekordbox, they exist, but they are greyed out in Djay and when I click “show in finder” there, nothing happens.
Thanks for the follow up @Tony123. Please try the following:
Find the file in finder, drag n drop onto deck and let it fully load (re-read waveform). Drag it again and load on same deck. Do this twice per track for all of those tracks and let me know if that helps.