Project Invoice Proposal not showing the lines from Sales order ax 2012 r2 Project management and Accounting

I had a T&M Project. 

Created Sales Order for that. 

Created line and its chargeable. 

Did the sales order confirmation and Packing slip. 

Then went to Invoice proposal on Project and selected Sales Order Line checkbox and update quantity as ALL. 

Clicked on Search. No lines showed up ?    Any idea why?

AX 2012 R2 cu9