Is there any mechanism (like a logfile) so that I can update my playlists to reflect changes made when duplicates are removed? I basically want a way to remove duplicates and fix my playlists to substitute the removed song with the matched song that won’t be deleted.
REmoving Duplicates - playlists
The console window output is written to jaikozuser0-0.log file, and I think this does contain the details of what has been deleted so you could trying parsing that.
Alternatively, you could use Advanced/Export to export data for open files in csv format. Then delete files, and export again in csv format. Then compare the two files to find rows that exist in first file but not second, and take the first value in each missing row to get a list of files deleted.