After update, system won't shutdown

As title, now everytime I want to shutdown or reboot, my system starts the process but get stucked…
It says something about old root. I’m looking around the journalctl commands to be more specific using --help, but I can’t find nothing for the shutting down time.

I have experienced that as well these last days. It has happened again at the first attempted reboot after updating my system few minutes ago. But the second reboot after a hard shutdown works fine.

There are more mentions right now. I suppose a kernel update is the cause and the next might fix it. I have it on my two Thinkpads while the HP laptop is running fine.

Would not worry too much nor investigate further.