unable to sort in payments

Hi All,

Issue :

    Business has submitted the PPR and in invoice review status able to sort by payment amount however in payment review status unable to sort by amount , trading partner wise ,

getting an error-The table cannot be sorted because it has pending changes which would be lost.

we have n't made any changes meaing remove the payments and not saved also ....

we are following the normal step wise process of submitting PPR

1)submitted PPR with payment method - Electronic

2)when invoice pending /review status able to sort  payment amount wise

3) calculated amount and submitted

4)Going to other status payment review status here we are unable to sort either amount , trading partner wise ,