PA600 Style instruments levels mismatch in songbook

[Jo Martins]

Hi everybody

Could any PA600 owner confirm this for me?
I done lots of Songbook setups, everything´s fine. But I realized that some of them sound almost 50‰ softer in volume, I have to press shift+Start/Stop (midi panic) in order to obtain full volume. The thing is that the volume values showed in the screen doesn´t change. This situation doesn´t happen all the time or in all the songbook entries but is very annoying when you change from one setup to another, even with the same parameters and values!!
I saved several songbook entries right after pressing midi panic without any difference: The style instruments volumes still decrease when recall that setup. I had changed to full value midi expression (CC11) without luck too.
Bug or malfunction?
Thanks!
Jo