The AAE error 9416 is a generic error message that appears in Adobe After Effects, typically when the software encounters an issue with a plugin, script, or a specific function. The error message doesn't provide detailed information, making it challenging to diagnose the problem.
Improperly configured Disk Cache settings have been linked to the error. Switching the Disk Cache to "Normal" has resolved the issue for some users on high-spec systems like the Mac Studio. Step-by-Step Troubleshooting Guide aae error 9416