Using MOTU Symphonic Instrument in Digital Performer 4.12
- First, go to /Library/Audio/Plug-Ins/Components and delete "MSI.component".
- Then go to your user's home folder, then Library/Preferences/Digital Performer. Delete the file named "Audio Unit Info Cache" (and empty the Trash).
- Re-launch Digital Performer. It will rescan your AUs, and then you will be able to use MSI in DP.