[ovirt-users] oVirt global utilization trend

Hi, I see that the global utilization 24h trend graph (CPU, RAM, Disk) at dashboard is showing only the last 3 hours. The line for previous hours is flat (see attached). I remember that on a previous installation I had tested it was showing the full 24 hours. Tried to run again engine-setup but issue remains. Any suggestions? Thanx, Alex