error message in posting open statement in retail AX 2012

Hi all,

I am facing an issue while posting open statement the error message is '1.00 cannot be picked because only 0.00 is/are available from the inventory.'

the scenario performed in this transaction is that:
Onhand of Item A = 1 (the opening balance at store),
Sold 1 quantity of Item A,
then the sold item A is returned,
then again the quantity at store is 1 which was then again sold to another customer. moreover the item model group attached to the item A is FIFO and we have check 'financial negative inventory' and unchecked 'physical negative inventory'.

please let me know your suggestion to resolve this issue. Is this any issue in configuration? please correct me where i missed. 

Yumna.