Released Quantity more than target quantity in Contract

Dear all,

The released quantity is more than target quantity in one contract document, it has just happened with one single document, all other documents it is working fine.

For example: Target quantity = 200

I create a credit memo for quantity 250, it does not allow as it is more than 200.

It is working as required for all documents except one.

The credit memo created against it do not exceed the target quantity, but released quantity is showing more than target quantity.

Any suggestions, as released quantity cannot be manually updated as well.

Regards,

Kam.