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[Solved] Mac mini M2 Pro encountering Logic Pro ‘System Overload. The audio engine was not able to process all required data’ after update (macOS Sonoma 14.7 + Logic Pro 10.8.1)

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Home › Forums › Logic Pro, Final Cut Pro & Pro Apps › [Solved] Mac mini M2 Pro encountering Logic Pro ‘System Overload. The audio engine was not able to process all required data’ after update (macOS Sonoma 14.7 + Logic Pro 10.8.1)

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  • November 15, 2026 at 12:18 am #15395
    Richard Murphy
    Certified Tech (Lvl 5)
    Diagnostic Hardware Specs: Mac mini M2 Pro | OS Version: macOS Sonoma 14.7 + Logic Pro 10.8.1 | Archive Source: Apple Support Community #256042115

    I am running into a persistent issue on my Mac mini M2 Pro running macOS Sonoma 14.7 + Logic Pro 10.8.1.
    Whenever the machine encounters CoreAudio thread scheduling buffer underrun with third-party AU plugins (-10011), the following diagnostic log appears in Console:

    CoreAudio: [com.apple.coreaudio] Logic Pro audio processing thread #4 exceeded buffer latency budget (-10011)

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

    Apple Vision Pro (1TB) | Mac mini M4 Pro (48GB) | Studio Display | Perth, AU
    visionOS Spatial Computing Developer | "Verified Apple Discussions Archive"
    November 15, 2026 at 12:18 am #15396
    Ethan Barnes
    Community Contributor
    Apple Recommended / Verified Community Solution
    This canonical solution was verified and marked as solved in the Apple Support Community archive.

    Increasing I/O buffer sample size, maximizing processing threads, and freezing high-CPU synth tracks.

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

    1. Navigate to Logic Pro > Settings > Audio > Devices and set I/O Buffer Size to 512 samples (or 1024 for mixing).
    2. Set Processing Threads from ‘Automatic’ to the maximum available performance cores.
    3. Enable Track Freeze on tracks with resource-heavy synthesizers or convolution reverbs.

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

    HomePod mini (Stereo Pair) | Apple TV 4K | iPad mini 7 (Wall Mounted) | Wellington, NZ
    Apple Certified Support Professional (ACSP) | Smart Home & Matter/Thread Integrator
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