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Frank Porter

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  • November 14, 2026 at 9:35 pm in reply to: [Solved] Audio Unit (AU) Validation Crash on Launch in Logic Pro Plugin Manager on Mac mini M4 Pro: How to resolve AUv2 component missing Apple Silicon native notarization or hardened runtime entitlement #12708
    Frank Porter
    Community Contributor
    Apple Recommended / Verified Community Solution
    This canonical solution was verified and marked as solved in the Apple Support Community archive.

    Flushing AudioUnit cache plist and triggering an isolated AU validation pass.

    Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

    1. Quit Logic Pro and delete the corrupt cache: 
      rm -f ~/Library/Caches/AudioUnitCache/com.apple.audiounits.cache
    2. Kill core audio daemon: 
      sudo killall -9 coreaudiod
    3. Open Logic Pro, navigate to Settings > Plug-in Manager, locate the crashed AU plugin, and click Reset & Rescan Selection.

    Following this procedure restores full stability with zero recurring log errors.

    Mac Studio M2 Ultra (128GB) | ASUS ProArt PA32UCG-K | OWC ThunderBay 8 | Portland, OR
    Apple Certified Support Professional (ACSP) | Final Cut Pro / DaVinci Colorist & Editor
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