Hi,
I have updated to Working-1.6 (1.5.7.853)
During Install on setting up and starting nfs server it reports [failed to get unit file state for nfs-server.service no such file or directory] but it does start OK.
As for imaging I am unable to image from the pxe menu 
But I can deploy tasks from the web gui & when I do it returns maybe 20 or so success boxes. This issue also happens when on a Host Management page and I click Update (if I changed the image etc.)
Another issue is at the end of when the image is deployed I receive 
I also seem unable to export the database from the Save Configuration page
Server is: Debian 8.11 Jessie
Version: Working-1.6 (1.5.7.853)
Kernel: 4.19.64