On my Zabbix appliance that has been upgraded to 2.1.6 i am unable to see anything in the Inventory->Hosts screen.
To test this i created a new host with all defaults and a dummy name. I then changed the inventory for the host to manual and added some dummy info in there as well.
I changed to the Inventory->Hosts screen were i saw the new host that i created above but when i select the host i get the zabbix header but no footer or inventory data.
In the /hostinventories.php file i put a print_r( $data ) and when clicking on the host i see all the inventory data is there but i guess the view isn't being rendered for some reason ?