Actual Financial period Cost disapear after copying a

Hello guys

I made a copy of my project and I’ve found out that in the copied version I have "lost" all the actual financial period cost. Let me explain:

Up to now, I have three period performance stored(sept-oct-nov)
If I go to the tracking view, either the "project gant profile" and the "resource profile’s" graph, show the actual cost only if I keep the flag "display actual and earned value using financial period performance" unchecked (in this case the actual costs are dispalyed with a linear distribuition. that’s OK) If I check the flag, the actual costs disapear. It seems this issue came up after copying the project. In the original one this never happened to me.

Futhermore, the period actual total costs value show up correctly in colums (under the activity view-choosing colums - finanacial period cost) but they have empty value in the tracking view either under the "project gant profile" and the "resource profile’s" spreadsheet. It seems to be a software bag! Have you ever experienced this

Thanks in advance
Filippo