On an AUDYA4:

1- Check for duplicate files and suspicious names on the USER STYLES dir and all subfolders.
2- Reinstalled 4.2a
3- Open a third party style. Play Style. No issues.
4- Try to modify the style by hitting EDIT (did no open the editor or view) or Style View. Close style. Try to selected again and I got the message "+++Corrupted Style". Same as before.
5- Reinstalled 4.1b
6- Selected style mark before as corrupted, now 4.1b don't display the name of the style but just an N and the style is never highlighted or able to play.
7- Replaced "corrupted" style with original; I can select it play, modify under 4.1b.

QUESTIONS:

a) Why the different behavior between 4.1b and 4.2a on the same style?
b) if there is a name issue why affect 4.2a and NOT 4.1b?
c) if it is a duplicated name issue on the HD why the same happen if I try to modify a non Ketron style from a Pen Drive.
d) Usually operating systems have issues with the same file name in the same directory, but not in different directories. If you try to copy a file with the same name under a dir, all OSs tell you that the file already exist (MAC OSX add a number to a duplicate file to make it different).

I will keep 4.1b installed until some a fix is found for this issue.