2.5.1. Avid Media Composer: Exception caught in APlayer::Play – Exception: DISK_TOO_MANY_OPEN

Problem

During playback or export of a sequence, Avid Media Composer aborts the operation with the error Exception caught in APlayer::Play - Exception: DISK_TOO_MANY_OPEN, filename: XXX_Filename.mxf.

Cause

Presumably, this error is caused when Media Composer attempts to open (access) more files than the maxfiles soft limit set in macOS. Numerous people reported this error, and we have observed it when using a Filesystem in Userspace (FUSE) in combination with external hard drives. This error, however, can also happen when using Media Composer with internal hard drives or on a shared storage.

Solution

Please use the solution path as provided by Avid in their knowledge base.