HP Diagnostics integrated with LoadRunner

I have a problem while trying to integrate the HP Diagnostics and the HP LoadRunner.

I have created a scenario for the LoadRunner, Controller, enable and configure the Diagnostics in the Controller, run the scenario, without any errors, and now I am trying to analyze the offline data provided by the HP Diagnostics in the HP LR Analysis.
There are some J2EE/.Net Server Diagnostics graphs available there and almost all are displayed correctly. Only the graph for the available metrics is not displayed correctly.
When I analyzed the Graph Data I realized that all the entries have the same relative time 00:00.
For the others graph the time is delivered correctly.

Any idea how to correct the time for this graph?

Any help would be appreciated.

Thanks a lot,
Ciprian