Plex container media optimization fails with insufficient disk space error

Running Plex container on openSuse Leap 15.3

Config mount is part of a 6TB volume on host and have mounted a transcode directory that’s on a 2TB volune and set it in the Plex server settings as the temp transcode files location.

HW transcoding is working fine through Nvidia docker and a Quadro P400.

My issue is that when I select an item to optimize for mobile, TV, etc it fails and I get errors in the logs saying that there isn’t enough space left on the device to perform the task. Has anyone run into this behavior?