The server log is in the attachment
Plex Media Server Logs_2022-11-05_12-29-08.zip (2.6 MB)
Server Version#: 1.29.1.6316
Player Version#: 4.93.3
After the server is upgraded to 1.29.1.6316, the 4K video can be decoded by hardware for the first time, but it will be decoded by software during subsequent playback, resulting in high CPU usage of the server. I hope a solution can be provided.