Quit Pro Tools. Navigate to the session folder. Delete the file named [YourSessionName].ptx.wavecache (or just the .wavecache file). Reopen the session. Pro Tools will build a fresh cache from scratch.
Improper playback settings can trigger 9416 during heavy edits.
Corrupted preference files are a common cause for "random" AAE errors. AAE ERROR 9416 - the greatest mystery error ever? aae error 9416 updated
AAE error 9416 is a relatively rare and often unpredictable message in Pro Tools that typically indicates an issue with Elastic Audio (EA) processing or a exhaustion of system resources
Ignore the “buffer underflow” text for a moment. In practice, 9416 is . The software asks for audio data from the interface buffer, but the buffer isn’t ready or is corrupted. Quit Pro Tools
Follow these steps sequentially to resolve the error and stop the application from hanging on session close. 1. Address Elastic Audio and Render Tracks
While the official Avid Knowledge Base famously bypasses explicit documentation for code 9416, real-world community telemetry establishes a few specific triggers: Reopen the session
As of mid-2026, with the latest Pro Tools 2025/2026 updates running on modern operating systems like macOS Sequoia, this "mystery error" remains a known, albeit frustrating, occurrence. This article provides an updated, comprehensive guide to understanding and resolving AAE Error 9416. What is AAE Error 9416?
A lower buffer size reduces latency but demands massive CPU power. If you get Error 9416 during mixing or heavy editing, increase your buffer. Go to > Playback Engine . Locate the H/W Buffer Size dropdown menu.
The is no longer the mysterious "disk error" of 2019. In the current 2026 Pro Tools ecosystem, it is a specific, fixable conflict between the Avid Audio Engine and your session’s support files (fades, wavecaches, and cloud locks).
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