Why is ARA Auto-Tune Pro Processing Only On The Left Channel Of An Audio Event?

Loading ARA Auto-Tune® Pro on a mono audio event that has been placed in a stereo audio track will cause any pitch and time corrections you’ve created with Auto-Tune to only be heard through the left channel while passing the right channel unprocessed.

Solution:  Change the audio track’s Channel Mode to “mono,” or move the audio event to a mono audio track.