Inventory Closing post item cost variance into WIP for invoiced transactions

Hi,

We have Microsoft Dynamics AX 2012 R3 CU9, We are using the project management and accounting module and we setup the WIP for the time and material projects.

If we released an item on a project the item cost was posted to the WIP account and once we issued the customer invoice, The item cost was transferred to the project cost account.

Our problem is once we run the inventory closing and adjustment, the item cost variance was posted to the WIP account although the item was invoiced. I think it supposed to be posted to the project cost account direct instead of the WIP.

So, Is it correct or there is a certain setup that I have to do to avoid such this scenario which affects the P&L?

Thanks