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[Solved] How to fix Audio Unit (AU) Validation Crash on Launch in Logic Pro Plugin Manager caused by AUv2 component missing Apple Silicon native notarization or hardened runtime entitlement on Mac mini M4 Pro

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Home › Forums › Logic Pro, Final Cut Pro & Pro Apps › [Solved] How to fix Audio Unit (AU) Validation Crash on Launch in Logic Pro Plugin Manager caused by AUv2 component missing Apple Silicon native notarization or hardened runtime entitlement on Mac mini M4 Pro

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  • November 14, 2026 at 11:05 pm #14155
    Gerald Jones
    Community Contributor
    Diagnostic Hardware Specs: Mac mini M4 Pro | OS Version: macOS Sonoma 14.7 | Archive Source: Apple Support Community #256284241

    I am running into a persistent issue on my Mac mini M4 Pro running macOS Sonoma 14.7.
    Whenever the machine encounters AUv2 component missing Apple Silicon native notarization or hardened runtime entitlement, the following diagnostic log appears in Console:

    auvaltool: [AUValidation] Failed to load component: Code signature invalid or missing entitlements

    I verified that hardware connections are intact and tested across different power sources. What is the verified diagnostic procedure to permanently eliminate this symptom?

    MacBook Pro 16″ M3 Max (48GB) | Sennheiser HD 800 S | Sibelius Ultimate | Munich, DE
    Classical Pianist & Spatial Audio Arranger | "Verified Apple Discussions Archive"
    November 14, 2026 at 11:05 pm #14156
    Naomi Jones
    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 mini M4 (24GB) | PreSonus Quantum HD 8 | Audio-Technica ATH-R70x | Perth, AU
    Apple Certified Support Professional (ACSP) | Classical Pianist & Spatial Audio Arranger
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