When changingthe start and end date in labor lines from FSTP duration is not automatically calculate

Hi,

When changing the start and end date in labor lines from FSTP duration is not automatically calculated

Steps followed:

Step1:Created SR and dispatched to FE

Step2:Click on debrief icon and go to labor and Click on "Add another row'  button .

New line will be allowed to edit.

First step: enter start date as 25 th Feb and later enter end date ad 23 rd feb (2 days before date) and later enter the item name and service date to 9th March

Observation :duration goes to negative value with error:Start Date and Time must be earlier than End Date and Time