Hello, i have this strange comportement with 10.0.2 version.

• Create a new project
• check the option for calculated validated time on order
• add new order (with charge validate)

And now when you read validated time in the project the value is 0.
For solve that:

• Create new activity with charge validate
• uncheck the option in the project ==> Validate time is now correct (same as activity)
• Re check the option for calculate validated time with orders.

And now the calcul is good.

Thanks for this tools it is a very very good tools !