Log Error Messages Not Understood

[Budgie]

(12-01-2018 18:13)simoncn Wrote:  You have a GROUP tag and this is being applied to tracks that aren't consecutive.

Yes, that accords with the error message. My problem is I know nothing about group tags and such a tag does not appear in PuddleTag, EasyTag or even the list of Tag mappings in the reference library unless CONTENTGROUP is the same thing. Even so I have no idea how it came to be set or how I can see it in order to correct the problem. Will read some more but if you can suggest a fix it would be much appreciated.