Openplotter headless unable to vnc in headless

[PaddyB]

New install of openplotter 64b from the latest image. SSH works OK, I've gone in to raspi-config & enabled vnc but on laptop & tablet get error "the connection closed unexpectedly". 
systemctl status shows >

Code:

pi@openplotter:~ $ sudo systemctl status vncserver-x11-serviced.service
● vncserver-x11-serviced.service - VNC Server in Service Mode daemon
     Loaded: loaded (/lib/systemd/system/vncserver-x11-serviced.service; enabled; vendor preset: enabled)
     Active: active (running) since Mon 2022-07-18 21:00:54 BST; 8min ago
   Main PID: 1390 (vncserver-x11-s)
      Tasks: 5 (limit: 1830)
        CPU: 701ms
     CGroup: /system.slice/vncserver-x11-serviced.service
             ├─1390 /usr/bin/vncserver-x11-serviced -fg
             ├─1392 /usr/bin/vncserver-x11-core -service
             ├─1400 /usr/bin/vncagent service 0
             ├─1401 /usr/bin/vncserverui service 0
             └─1409 /usr/bin/vncserverui -statusicon 0

Jul 18 21:00:55 openplotter systemd[1]: Started VNC Server in Service Mode daemon.
Jul 18 21:00:55 openplotter vncserver-x11[1392]: ServerManager: Server started
Jul 18 21:00:55 openplotter vncserver-x11[1392]: FeatureRsaKey: Error fetching/generating public key: Error getting private key from /root/.vnc/private.key>
Jul 18 21:00:55 openplotter vncserver-x11[1392]: ConsoleDisplay: Found running X server (pid=639, binary=/usr/lib/xorg/Xorg)
Jul 18 21:01:46 openplotter vncserver-x11[1392]: Connections: connected: 10.10.10.138::52892 (TCP)
Jul 18 21:01:46 openplotter vncserver-x11[1392]: Connections: disconnected: 10.10.10.138::52892 (TCP) ([MbedTls] Error getting private key from /root/.vnc/>
Jul 18 21:09:14 openplotter vncserver-x11[1392]: Connections: connected: 10.10.10.138::52894 (TCP)
Jul 18 21:09:15 openplotter vncserver-x11[1392]: Connections: disconnected: 10.10.10.138::52894 (TCP) ([MbedTls] Error getting private key from /root/.vnc/>
lines 1-21/21 (END)

Any ideas? Can't do an update as I can't get a desktop to set up wifi..

thnx

Edit - managed to get in by running vncserver in the command line over ssh then connecting to 10.10.10.1:1