OSStatus error -108 in Logic Pro 11 after upgrading to MacOS 15.4

This error (OSStatus error -108) keeps popping up when opening LP 11.1.2 files and sometimes takes multiple times of clicking OK before it disappears. Also, since upgrading to MacOS 15.4, when opening numerous LP projects, the program keeps asking to locate audio files from one particular folder on my external drive. This folder has never been moved and these files have never before been added to the projects in many cases.


If I open a Logic project from my backup drive, this doesn't happen. Only when I open the original from my computer's HD, which is where it was first was saved.


I noticed in Activity Monitor, when LP projects are opened from the computer's drive, they use much more memory than when I open the files from the backup drive (where the bizarre pop ups don't appear).


Any ideas for fixing this would be greatly appreciated.

iMac (M4)

Posted on Apr 14, 2025 3:50 PM

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Posted on Apr 15, 2025 6:55 PM

I tried changing the permissions of the internal drive to the backup drive, but it didn't help.


BUT, I moved the Logic Projects folder out of the /Music folder it resided in, put in on the Desktop and then opened a Project.


Everything works when the folder sits on the Desktop. I then moved it to the Documents folder. Everything works fine from that location, too.


I'm restoring a previous Music folder from a TM backup while keeping the original. I'll see if iLogic works from the restored folder.


If not, I guess I have to keep the Logic Projects folder in perhaps the Documents folder ongoing?

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OSStatus error -108 in Logic Pro 11 after upgrading to MacOS 15.4

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