The error is frequently linked to a clip on an Elastic Audio track entering a "bad state". Identify Problem Tracks
The internet is full of old threads telling you to do the following. aae error 9416 updated
If the error disappears, reintroduce plugins in small groups to identify the culprit. Pay special attention to recent updates—one user traced their error to updating to Waves 12. The error is frequently linked to a clip
: It is a best practice to keep your Pro Tools Session on a different drive than your Operating System and your Sample Libraries . This prevents three different processes from fighting for the same disk's "attention." 4. System Optimization (Power Management) aae error 9416 updated
to force Pro Tools to read directly from the drive rather than system RAM.