Make certain server DEBUG logging is enabled (VERBOSE disabled)
Restart PMS
Let it sit completely idle for a couple minutes (3 minutes should be enough)
Download the logs.
Search for “No space left on device” (scroll down through the logs.. it will be obvious)
If you don’t see any, confirm the transcoder temp is on a local HDD (Network storage will not work for this)
If you do find this error message , this confirms the Notify table (which EAC transcoding uses) is full (you are attempting to monitor more folders than the kernel allows by default). A lot of properly structured music or photos will fill the kernel table very quickly.
The solution is to increase the table size.
Here is how you determine if you need to increase the table size and then how to increase the size.