Can't get showAllDiscs=true to work

[mightyoakbob]

Try as I might I cannot get this semicolon fix to work.
I have 4 copies of the Celebration album,
Celebration, Celebration2, Celebration3, Celebration4.
2,3,4 are in another directory away from the original and have been used for testing the effects of the disc tags etc.

However I have tonight changed all 4 to add the semicolon to the track that doesn't display.
I've saved the changes and re-indexed, it still does not display in any of the 4 albums.

Okay so I tried another track, I changed the artist from "Madonna" to "Madonna;test".
That track vanished from the all artist view.

The must be something else going on here, something I don't know about because it doesn't work.

Thanks.
Bob.