Reserve Line on Reservation Form not reserving full qty when units are changed

There is an issue with the reserve line button reserving the full qty when the user changes units on the Reservation Form of a Sales Order. It reserves an odd amount and not the full qty that is available to reserve.  Does anyone know a fix or solution for this? 

This is the current code for when the reserve line button is clicked

void clicked()
{
PdsCW_InventOnhandReserve cwInventOnhandReserve; 
PdsBatchDispCheck_Reserve pdsDispCheck;
CustAccount custId;
Common common = element.args().record();
;

super();

if ( #PdsShelfEnabled)
{
switch (common.TableId)

{
case tablenum(SalesLine) :
custId = common.(fieldnum(SalesLine,CustAccount));
break;
case tablenum(SalesParmLine) :
custId = common.(fieldnum(SalesParmLine,CustAccount));
break;
default :
custId = '';
}

if (!inventBatch::PdsCheckExpiryDate(inventDim.inventBatchId,
inventTrans.ItemId,
checkDate,
true,
custId,
overrideFEFO))
{
throw error("@PRO2139");

}
}
if (#PdsEnabled)
{
pdsDispCheck = PdsBatchDispCheck_Reserve::construct();
if (!pdsDispCheck.validateTransCheck(inventTrans,element.args().record()))
{
throw error("@PRO2139");
}
}

if (pdsIsCWItem(inventTransMovement.ItemId))
{
cwInventOnhandReserve = inventOnhandReserve;
cwInventOnhandReserve.pdsCWUpdateReserveLine(inventSum,
inventTransMovement_ds.pdsCWMovementOnOrder(inventTransMovement),
inventDim,inventTransMovement);
}
else
{ 
inventOnhandReserve.updateReserveLine(inventSum, inventTransMovement_ds.movementOnOrder(inventTransMovement));
} 
element.refreshMovement(); 

reserveNow.setFocus();
}