PJC: Cost shows in wrong currency

Hi,

I have setup a project for Nigeria (currency NGN). The customer is linked to an NGN AR account set, the project account set is in NGN. I can see that the Categories in the project show the NGN exchange rate on top right of the screen.

When I input a timecard against an employee and the Nigeria project, I have noticed that the Extended cost is in USD. This should have been in NGN.  Please see screenshot. What am I missing?

Marios