Plex Media Server cannot be started after update - is "masked"

Server Version#:1.32.8.7639

Plex Media Server has worked flawlessly on my RaspberryPi 400 (Raspberry PI OS, Ubuntu) until I installed the latest update (v.1.32.8.7639). Suddenly the service isn’t started at reboot, and any attempt to start it manually trough the terminal fails with error message “plexmediaserver.service is masked”.

I have tried with systemctl unmask plexmediaserver and it executes without output. However, subsequent attempts to start or restart plexmediaserver still gives the same error about the service being masked. There is no way to reach it via localhost: 32400, nor can I reach it with Plex Media Player from other devices as I could before. Hence the server appears to not be running.

I am at a loss here - I have never encountered this before. What can be done?

Go into the Plex Media Server directory.
Make a tar.gz of “Logs” and attach it.

We’ll see what it’s barking at

Sure thing. Here are my logs from the last couple of days.

This is the status after a recent reboot (previously, it has always started automatically at reboot, and I haven’t changed anything besides updating plex media server):

andreas@raspberrypi:~ $ sudo systemctl status plexmediaserver.service
* plexmediaserver.service
     Loaded: masked (Reason: Unit plexmediaserver.service is masked.)
     Active: inactive (dead)

andreas@raspberrypi:~ $ sudo systemctl start plexmediaserver
Failed to start plexmediaserver.service: Unit plexmediaserver.service is masked.

Logs.zip (1.1 MB)

There have been reported issues with 1.32.8

Here is 1.32.7 in case you didn’t save it.

Please downgrade to 1.32.7 and try again

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