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Reply To: [Solved] How to fix Logic Pro ‘System Overload. The audio engine was not able to process all required data’ caused by CoreAudio thread scheduling buffer underrun with third-party AU plugins (-10011) on MacBook Pro 14″ M3 Pro
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Home › Forums › Logic Pro, Final Cut Pro & Pro Apps › [Solved] How to fix Logic Pro ‘System Overload. The audio engine was not able to process all required data’ caused by CoreAudio thread scheduling buffer underrun with third-party AU plugins (-10011) on MacBook Pro 14″ M3 Pro › Reply To: [Solved] How to fix Logic Pro ‘System Overload. The audio engine was not able to process all required data’ caused by CoreAudio thread scheduling buffer underrun with third-party AU plugins (-10011) on MacBook Pro 14″ M3 Pro
Harper BryantIncreasing 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:
- Navigate to Logic Pro > Settings > Audio > Devices and set I/O Buffer Size to 512 samples (or 1024 for mixing).
- Set Processing Threads from ‘Automatic’ to the maximum available performance cores.
- Enable Track Freeze on tracks with resource-heavy synthesizers or convolution reverbs.
Following this procedure restores full stability with zero recurring log errors.