unable to see those tasks/child tasks

 Hello

I created an invoice in AP for a Task/child task 1.1 for a project, interfaced the invoice back to PA and it says it was interfaced successfully, when i view the Status Actual i get the error 'Can only drilldown to the lowest level' the Task is marked as 'Chargeable'

Project Status>Project status inquiry , then i look at the 'Task status' window   when clicking on (B) actuals 

any assistance will be appreciated

Thank you in advance

i create an invoice, enter the task 1.1 but when i view task satus actuals