Open quantity in Sales Order did not update after cancelling Reserve Invoice

Client created Credit Memo with reference to Reserve Invoice but this did not update the open quantity in Sales Order. Client is using SAP B1 8.82 PL9. I tested this in SAP 9.0 and still same behavior. Is there a work around other than creating another SO?

I checked Document Settings and "Reopening Doc by creating credit memo based on Doc" is enabled.

Thanks in advance.