Thanks for the logs, has errors such as
at com.jthink.jaikoz.TagSaver$WorkerThread.run(TagSaver.java:648)
31/03/2025 17.00.53:com.jthink.jaikoz.data.mp3.MP3Bridge:saveFileOnlyFromID3:SEVERE: IOException on attempting to save file:Cannot modify H:\Shared\Air Supply\Air Supply - Platinum & Gold Collection (2004) because do not have permissions to modify file
org.jaudiotagger.audio.exceptions.UnableToModifyFileException: Cannot modify H:\Shared\Air Supply\Air Supply - Platinum & Gold Collection (2004) because do not have permissions to modify file
at org.jaudiotagger.tag.id3.AbstractID3v2Tag.writeBufferToFile(AbstractID3v2Tag.java:1317)
at org.jaudiotagger.tag.id3.ID3v23Tag.write(ID3v23Tag.java:804)
at org.jaudiotagger.audio.mp3.MP3File.save(MP3File.java:921)
at org.jaudiotagger.audio.mp3.MP3File.save(MP3File.java:825)
at com.jthink.jaikoz.data.mp3.MP3Bridge.saveFileOnlyFromID3(MP3Bridge.java:299)
at com.jthink.jaikoz.data.id3.ID3Bridge.saveFileFromModel(ID3Bridge.java:199)
at com.jthink.jaikoz.data.FileBridgeFactory.saveFileFromModel(FileBridgeFactory.java:186)
at com.jthink.jaikoz.TagSaver$WorkerThread.run(TagSaver.java:648)
So the issue is either the files themselves or something preventing access to those files.
So I assume when you it worked okay with earlier version of Jaikoz yo tested against the exact same files, if not its not a reliable test and should be redone.
If it was the same files then the obvious conclusion is that something is preventing writing to files, i.e your Anti-Virus or Malware Protection service because it does not like the new security certificate in the software. It seems there is some delay between issuing a new certificate and then getting accepted by all installations Im not clear how it works.
So in the meantime I would suggest you check the logs of your Anti-Virus or malware protetction to see if it is reporting that it has prevented file modification.