Just for a test, I built a new server. I installed Ubuntu 18.04, updated and patched to the latest. I then installed and configured FOG 1.5.7.
I connected a sample laptop I have laying around, PXE booted and performed a quick registration and inventory. The laptop now shows up under Hosts. I can select the new host and click on Inventory and it shows all the information.
When I go to Reports and select Inventory Report, again there is a blank page. No data shows up.
I now firmly believe that either I’m doing something very wrong, or there is a bug in the reports.