@Wayne-Workman thanks, I was meant to say that I had been through that article after searching the forums and finding similar posts.
I also rebooted the server and also tried again after updating, I know it doesn’t really help us in finding what went wrong but I ended up rolling back my FOG VM a few days (both master and node was able to deploy after this). I then updated the master to the latest (to match the storage node) and both are able to deploy images.
thanks again