Follow up on my first post:
I noticed when the issue happens, the timestamp from the console log is also very strange:
The first part of time is 00:48, then very suddenly it changes to 16:48 (which is the correct time, as I am displaying the log at UTC+8 timezone)
I doubt it may relating to my jenkins was running on UTC time. I am using locale plugin to display the time to my own timezone.
Attach my Jenkins server settings:
jenkins_remote@jenkins-server:~$ timedatectl status
Local time: Fri 2025-12-12 10:04:36 CST
Universal time: Fri 2025-12-12 02:04:36 UTC
RTC time: Fri 2025-12-12 02:04:36
Time zone: Asia/Taipei (CST, +0800)
System clock synchronized: yes
NTP service: n/a
RTC in local TZ: no
jenkins_remote@jenkins-server:~$ ps afx |grep jenkins
437156 ? Ss 0:00 _ sshd: jenkins_remote [priv]
437273 ? S 0:00 _ sshd: jenkins_remote@pts/0
438011 pts/0 S+ 0:00 _ grep --color=auto jenkins
427159 ? Ssl 69:31 /usr/bin/java -Djava.awt.headless=true -jar /usr/share/java/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080