I only started noticing this after the latest PMS update, but not sure if it had always been there.
After adding new items to the library, starting PMS and selecting 'Update', the iMac's CPU goes into a frenzy with the 'Plex New Transcoder' running at 190% CPU, and it seems to stay at that level sending internal temperature up like 9/10 degrees.
This happens with the ATV4 turned off. No pushing is taking place. No syncing to other devices, and no Auto File Indexing chosen (I don't even have that option in PMS settings)
The only way out seems to be quitting PMS and relaunching it.
Any ideas would be appreciated.