I've been having this issue ever since I owned my 16 channel Studiolive Series III mixer. When I update the firmware, my preamp gains on all the channels reset to zero. I back up my mixer and make sure my projects/scenes are saved before I do the firmware update. If I then recall a scene after the update, my preamp gains are still at zero instead of where they were set before I updated the firmware. This issue is very annoying since every time I update the firmware I have to set all my preamp levels again. Anyone else have this issue or can someone help me? Thanks.