PO Receipt_Extended Price

Hi,

We face "Extended Price Invalid" (error id: 0252) errors while receiving POs.   This has been happening for last one week only.  We did not change any configurations recently.  We checked the UoM, Conversion, Tolerance, Catalog Price, almost everything that we could imagine.  This especially happens when we over or under receive the PO.  The amount AOPNR field is not automatically recalculating based on receipt quantity.  When we blank out the "amount" - AOPNR field,  the system recalculates and populates the correct amount and then we could receive it.  However, the users claim that this was not the case before one