The Galera cluster primary node goes into hang mode when innodb_encryption_threads is enabled

/test/mtest/mariadb-10.9.0-linux-x86_64/scripts/mariadb-install-db --no-defaults --force --auth-root-authentication-method=normal  --basedir=/test/mtest/mariadb-10.9.0-linux-x86_64 --datadir=/test/mtest/mariadb-10.9.0-linux-x86_64/node1  > /test/mtest/mariadb-10.9.0-linux-x86_64/logs/startup_node1.err 2>&1

/test/mtest/mariadb-10.9.0-linux-x86_64/scripts/mariadb-install-db --no-defaults --force --auth-root-authentication-method=normal  --basedir=/test/mtest/mariadb-10.9.0-linux-x86_64 --datadir=/test/mtest/mariadb-10.9.0-linux-x86_64/node2  > /test/mtest/mariadb-10.9.0-linux-x86_64/logs/startup_node2.err 2>&1

/test/mtest/mariadb-10.9.0-linux-x86_64/bin/mysqld --defaults-file=/test/mtest/mariadb-10.9.0-linux-x86_64/n1.cnf --plugin-load-add=file_key_management.so --loose-file-key-management --loose-file-key-management-filename=/home/ramesh/mariadb-qa/galera-sst-qa/conf/keys.txt --file-key-management-encryption-algorithm=aes_cbc  --wsrep-new-cluster > /test/mtest/mariadb-10.9.0-linux-x86_64/logs/node1.err 2>&1 &

sleep 2

/test/mtest/mariadb-10.9.0-linux-x86_64/bin/mysql -uroot -S/test/mtest/mariadb-10.9.0-linux-x86_64/node1/node1_socket.sock -e 'create database if not exists test' > /dev/null 2>&1

sysbench /usr/share/sysbench/oltp_insert.lua --table-size=1000 --tables=10 --threads=10 --mysql-db=test --mysql-user=root --db-driver=mysql --mysql-socket=/test/mtest/mariadb-10.9.0-linux-x86_64/node1/node1_socket.sock prepare > /test/mtest/mariadb-10.9.0-linux-x86_64/logs/sysbench_load.log 2>&1

/test/mtest/mariadb-10.9.0-linux-x86_64/bin/mysqld --defaults-file=/test/mtest/mariadb-10.9.0-linux-x86_64/n2.cnf --plugin-load-add=file_key_management.so --loose-file-key-management --loose-file-key-management-filename=/home/ramesh/mariadb-qa/galera-sst-qa/conf/keys.txt --file-key-management-encryption-algorithm=aes_cbc  > /test/mtest/mariadb-10.9.0-linux-x86_64/logs/node2.err 2>&1 &

sleep 5

/test/mtest/mariadb-10.9.0-linux-x86_64/bin/mysql -uroot -S/test/mtest/mariadb-10.9.0-linux-x86_64/node1/node1_socket.sock -e"FLUSH LOGS" ; # "FLUSH LOGS" goes to hang state