I had the same issue as KlutchPotato, although I am on a MBP M1. The fix I found was that I had Scale To Sound in the wrong plugin folder. I made sure to follow the path that was given in the instructions, not the path that I had originally tried, which was opening the package contents in Finder and accessing the plugin folder that way. You have to access the Library in the GO dropdown in Finder (Press Option when GO dropdown is showing, then Library will appear) Then make sure you are in the MacintoshHD Library to access obs_studio