QNAP TS-453D Plex Hardware Transcoding not Working

Plex Media Server NAS & Devices
4

Was that your solution? The hardware should be able to convert 4k easily, right?
Perhaps you are running in the the problem I had? QNAP transcoding problems after upgrade to Firmware 5.0.0.1986 Build 20220324 - #12 by ChuckPa