Deploy ProxySQL with Import Fails

I have successfully deployed a MariaDB Galera cluster with 3 nodes. I am now having trouble deploying my load balancers. The first ProxySQL balancer deploys perfectly. I then add the second balancer using the Import Configuration option.

The install progresses well, then just stops @ starting sudo command: sleep 3; cat /var/lib/proxysql/proxysql_galera_checker.sh | socat - TCP4:AUMEL-CC01.ausip.local:9999

I've left it overnight and it just stays at this stage. I reboot the ClusterControl to cancel the job & ProxySQL is installed and operational. I try and re-sync the config and this hangs also.

Below is the full installation script for the second ProxySQL node.

[18:48:04]:<em style='color: #2ecc71;'>10.200.210.141</em>: starting sudo command: sleep 3; cat /var/lib/proxysql/proxysql_galera_checker.sh | socat - TCP4:AUMEL-CC01.ausip.local:9999
[18:48:04]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: starting sudo command: nc -dl 9999 > /home/ausip/backups/BACKUP-1/var/lib/proxysql/proxysql_galera_checker.sh
[18:48:04]:Copying file '10.200.210.141:/var/lib/proxysql/proxysql_galera_checker.sh' to 'AUMEL-CC01.ausip.local:/home/ausip/backups/BACKUP-1/var/lib/proxysql/proxysql_galera_checker.sh' by using netcat.
[18:48:03]:Start collecting scheduled scripts
[18:47:50]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: Selecting working netcat command for this host
[18:47:37]:<em style='color: #2ecc71;'>10.200.210.141</em>: Selecting working netcat command for this host
[18:47:37]:Done dumping scheduler
[18:47:37]:scheduler backup (1/1) = 100% done.
[18:47:36]:Start dumping scheduler
[18:47:36]:Done dumping mysql users
[18:47:36]:mysql user privileges backup (2/2) = 100% done.
[18:47:35]:Backing up proxysql registered mysql users with their privileges.
[18:47:34]:Backing up proxysql monitor user first.
[18:47:34]:Open backup file for mysql users and privileges.
[18:47:34]:Done backing up proxysql configuration file 10.200.210.141:6032:<em style='color: #007e18;'>/home/ausip/backups/BACKUP-1/proxysql-admin.cnf</em>.
[18:47:34]:Backing up config file '<em style='color: #2ecc71;'>10.200.210.141</em>:6032:/etc/proxysql-admin.cnf'
[18:47:34]:Done backing up proxysql configuration file 10.200.210.141:6032:<em style='color: #007e18;'>/home/ausip/backups/BACKUP-1/proxysql.cnf</em>.
[18:47:34]:Backing up config file '<em style='color: #2ecc71;'>10.200.210.141</em>:6032:/etc/proxysql.cnf'
[18:47:34]:Done dumping mysql_users
[18:47:34]:mysql_users backup (2/2) = 100% done.
[18:47:33]:Start dumping mysql_users
[18:47:32]:Done dumping mysql_servers
[18:47:32]:mysql_servers backup (6/6) = 100% done.
[18:47:32]:Start dumping mysql_servers
[18:47:31]:Done dumping mysql_query_rules
[18:47:31]:mysql_query_rules backup (3/3) = 100% done.
[18:47:30]:Start dumping mysql_query_rules
[18:47:30]:Done dumping mysql_replication_hostgroups
[18:47:29]:Start dumping mysql_replication_hostgroups
[18:47:29]:Done dumping global_variables
[18:47:29]:global_variables backup (124/124) = 100% done.
[18:47:28]:global_variables backup (100/124) = 80% done.
[18:47:27]:global_variables backup (50/124) = 40% done.
[18:47:26]:Start dumping global_variables
[18:47:26]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: Detected OS: debian
[18:47:26]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: Detecting the OS.
[18:47:26]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: checking this backup destination node.
[18:47:26]:<em style='color: #2ecc71;'>10.200.210.141</em>: Detected OS: debian
[18:47:26]:<em style='color: #2ecc71;'>10.200.210.141</em>: Detecting the OS.
[18:47:26]:<em style='color: #2ecc71;'>10.200.210.141</em>: checking this backup data source node.
[18:47:26]:Starting backup procedure of proxysql.
[18:47:26]:<em style='color: #f3990b;'>AUMEL-CC01.ausip.local</em>: Creating backup dir '<em style='color: #0b33b5;'>/home/ausip/backups/BACKUP-1</em>'.
[18:47:26]:Created backup record, id is 1.
[18:47:26]:Using default backup root dir: /home/ausip/backups
[18:47:26]:Backup will be saved on host AUMEL-CC01.ausip.local.
[18:47:26]:Starting backup of the source proxysql node.
[18:47:26]:Synchronization of proxysql nodes by doing a backup of '10.200.210.141' to 'AUMEL-CC01.ausip.local' and a restore from 'AUMEL-CC01.ausip.local' to '10.200.210.142'.
[18:47:26]:Synchronizing 10.200.210.141 to the new proxysql node just installed (10.200.210.142).
[18:47:24]:Cluster type is Galera.
[18:47:23]:<em style='color: #75599b;'>10.200.210.41</em>: Creating 'proxydemo'@'10.200.210.142'.
[18:47:23]:<em style='color: #75599b;'>10.200.210.41</em>: Creating 'proxydemo'@'127.0.0.1'.
[18:47:23]:<em style='color: #75599b;'>10.200.210.41</em>: Creating 'proxydemo'@'localhost'.
[18:47:23]:<em style='color: #1abc9c;'>10.200.210.142</em>:6032: Creating 'demo' user on Cluster Nodes to allow ProxySql to connect.
[18:47:23]:<em style='color: #1abc9c;'>10.200.210.142</em>: Setting up basic query rules.
[18:47:11]:<em style='color: #75599b;'>10.200.210.41</em>: Creating user 'proxysql-monitor'@'10.200.210.142'.
[18:47:11]:<em style='color: #1abc9c;'>10.200.210.142</em>: Succesfully set monitor user and password.
[18:47:11]:<em style='color: #1abc9c;'>10.200.210.142</em>:6032: Creating a monitor user on data nodes.
[18:47:11]:<em style='color: #1abc9c;'>10.200.210.142</em>:6032: Creating monitor user.
[18:47:10]:<em style='color: #1abc9c;'>10.200.210.142</em>:6032: Waiting for ProxySql to initialize.
[18:47:07]:<em style='color: #1abc9c;'>10.200.210.142</em>: proxysql service status: * proxysql.service
Loaded: loaded (/lib/systemd/system/proxysql.service; enabled; vendor preset: enabled)
Active: active (exited) since Mon 2018-02-19 18:47:04 AEDT; 3s ago

Feb 19 18:47:04 AVMEL-DBLB02 systemd[1]: Starting proxysql.service...
Feb 19 18:47:04 AVMEL-DBLB02 su[30125]: Successful su for proxysql by root
Feb 19 18:47:04 AVMEL-DBLB02 su[30125]: + ??? root:proxysql
Feb 19 18:47:04 AVMEL-DBLB02 su[30125]: pam_unix(su:session): session opened for user proxysql by (uid=0)
Feb 19 18:47:04 AVMEL-DBLB02 proxysql[30122]: Starting ProxySQL: DONE!
Feb 19 18:47:04 AVMEL-DBLB02 systemd[1]: Started proxysql.service.
[18:47:04]:<em style='color: #1abc9c;'>10.200.210.142</em>: Trying to start using OS service.
[18:47:03]:<em style='color: #1abc9c;'>10.200.210.142</em>: Starting 'proxysql' service.
[18:47:03]:<em style='color: #1abc9c;'>10.200.210.142</em>: Created configuration: <em style='color: #007e18;'>/etc/proxysql.cnf</em>
[18:47:02]:<em style='color: #1abc9c;'>10.200.210.142</em>: Detected CPU cores: 2
[18:47:02]:<em style='color: #1abc9c;'>10.200.210.142</em>: Detecting number of CPU cores/threads.
[18:46:51]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installed proxysql software (version: '1.4.5').
[18:46:35]:<em style='color: #1abc9c;'>10.200.210.142</em>: No mysql client found. Installing.
[18:46:35]:<em style='color: #1abc9c;'>10.200.210.142</em>: Checking if 'mysql' is installed.
[18:45:25]:<em style='color: #1abc9c;'>10.200.210.142</em>: Finished with helper packages.
[18:45:08]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>augeas-tools</strong>.
[18:45:07]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>openssl</strong>.
[18:45:01]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libatomic1</strong>.
[18:45:00]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>tar</strong>.
[18:45:00]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>iproute2</strong>.
[18:44:59]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>bzip2</strong>.
[18:44:51]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libmecab2</strong>.
[18:44:50]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libnuma1</strong>.
[18:44:43]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>pigz</strong>.
[18:44:43]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>curl</strong>.
[18:44:42]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>wget</strong>.
[18:44:21]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libdbd-mysql-perl</strong>.
[18:44:20]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libssl1.0.0</strong>.
[18:44:20]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>lsb-release</strong>.
[18:44:07]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>socat</strong>.
[18:44:06]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>netcat-openbsd</strong>.
[18:43:58]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>netcat</strong>.
[18:43:53]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>libaio1</strong>.
[18:43:52]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>rsync</strong>.
[18:43:52]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing <strong style='color: #110679;'>psmisc</strong>.
[18:43:43]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing helper packages.
[18:43:24]:<em style='color: #1abc9c;'>10.200.210.142</em>:6032: Setting up repositories.
[18:43:07]:<em style='color: #1abc9c;'>10.200.210.142</em>: Detected Vendor: <strong style='color: #59a449;'>ubuntu</strong>, Release: <strong style='color: #59a449;'>xenial</strong>, Release Name: <strong style='color: #59a449;'>xenial</strong>
[18:43:06]:<em style='color: #1abc9c;'>10.200.210.142</em>: Installing ProxySql.
[18:43:04]:<em style='color: #1abc9c;'>10.200.210.142</em>: Including <em style='color: #af7ac4;'>10.200.210.43</em>:6603 for loadbalancing.
[18:43:04]:<em style='color: #1abc9c;'>10.200.210.142</em>: Including <em style='color: #34495e;'>10.200.210.42</em>:6603 for loadbalancing.
[18:43:04]:<em style='color: #1abc9c;'>10.200.210.142</em>: Including <em style='color: #75599b;'>10.200.210.41</em>:6603 for loadbalancing.
[18:43:04]:Checking job parameters.
[18:43:04]:Started proxysql.setupproxysql