hi ,i found when i update it to 3.12 version ,All midi out (64 channel) was gone with cubase. but 3.0 doesn't have this problem before .it is bug ? or it doesn't needs already ? in the GS3_Change_History_312.pdf ,i didn't find anythings about this.
1,run gigaclean & reboot
2,install 3.0 & reboot
3,open the cubase to check the rewire's midi out channel, its ok ,
4,install 3.12 & reboot
5,restore license backup & settings GS3
6,open the cubase to check the rewire's midi out channel, its gone.