Logic Pro – “Relocate Sound Library” Greyed Out on External SSD (APFS)

I am experiencing a persistent issue with Logic Pro on macOS 15.3.1 where the “Relocate Sound Library” option remains greyed out despite meeting all system requirements.

Issue Details:

• I am using an APFS (non-case-sensitive) formatted external SSD with ample storage.

• Logic Pro recognizes the SSD in the Relocate Sound Library menu, but it is permanently greyed out.

• The Sound Library is still downloading to the internal drive, despite attempts to redirect it to the SSD.

Troubleshooting Steps Taken (None Worked):

✅ Reformatted SSD to APFS (non-case-sensitive).

✅ Manually created the required directory structure (/Library/Application Support/Logic/Audio).

✅ Used defaults write com.apple.logic10 SoundLibraryLocation to set the correct SSD path.

✅ Verified permissions and ownership of all relevant folders (chmod 777).

✅ Reset Logic Pro preferences (defaults delete com.apple.logic10).

✅ Deleted and manually reinstalled all sound content.

✅ Restarted multiple times, tested on different Logic Pro installs.

Expected Behavior:

I should be able to select my external SSD and relocate the Sound Library.

Actual Behavior:

• Logic Pro detects the external SSD, but Relocate Sound Library remains greyed out.

• Files continue to install on the internal drive, ignoring the set SoundLibraryLocation path.

• No official Apple documentation states any recent removal of this feature.

Request:

• Is this a known issue in macOS Sonoma / Logic Pro 11.1.2?

• Has Apple disabled external Sound Library relocation in a recent update?

• If so, is there an alternative method to move the Sound Library to an external drive?

This issue is affecting my workflow, as I have limited internal storage and need to store Logic Pro’s Sound Library externally. I appreciate any official guidance or a fix for this problem.

Thank you for your time.