I have big sur. Logic pro x is version 10.7.4. I myself have followed your instructions. it rescan however to no avail. Still have the same problem. I am looking to upgrade my Mac is, however, my MacBook pro is a 2015. I need to use a patch to upgrade to ventura. I made a back up but scare i might screw things up even worse. Never did this upgrade before. If things go wrong how do i restore backup?