Missing Project Delivery Cost Element

Community,

I have a question here, not sure how to fix it.

I have a project delivery created and I calculate the cost at in Project Item Navigator window. please see attachment “Project Delivery 6388307 Cost Roll Up”, so in this window, you can see the roll up cost $1758.2874, which is correct,  please refer to the second screenshot “ 6388307 Standard Cost”. 

now comes the question, why there is only one cost element “MATERIALS” available in the Project Item Navigator window, per the item standard cost, it should include at least Labor cost element, whereas it is not.

wondering how to fix it? posting control?

Thank you.