Service MariaDB refuse to stop (randomly)

Hello,

I'm currently preparing a new MariaDB cluster 10.11 ( 3 servers) to migrate our currently production server ( 10.6 ) .
The first node on this cluster is a slave replication of a master production node ( in order to have all data up to date the day we 're going to switch on this new cluster ) .

On this first node , the mariadb service ( systemd) , most of the time ( rarely it's working) , refuse to stop.

I compared the logs when it works or not
and when the service refuse to stop , the last line is always
2024-03-20 16:47:52 0 [Note] WSREP: Deinitializing allowlist service v1

I have to shutdown power and restart the server

When it works :
2024-03-20 14:14:19 0 [Note] WSREP: Deinitializing allowlist service v1
2024-03-20 14:14:19 0 [Note] InnoDB: FTS optimize thread exiting.
2024-03-20 14:14:19 0 [Note] InnoDB: Starting shutdown...

It's the first time i have this kind of problem on a MariaDB Server

Thanks