Sometimes launching Logic Pro with the Control key held down and starting up without the core audio engine is enough to get the project open and access the data to copy paste or drag and drop into a fresh project.. Take the file called ProjectData from the source project either from the desired alternative folder or from the desired Project File Backup subfolder and copy it to the. Usually we can use the Import function in the All Files section of the Browser to bring the project data into a new project. If project corruption continues try using the ProjectData files from one of the Project File Backups subfolders in the source project's Package Contents window. Right click on the icon of the source corrupted Logic Pro document in the Finder and choose Show Package Contents..
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