Maybe you can try debugging to see if there is a problem with control rules, parameters etc. You can do debugging as in described at below page: https://wiki.scn.sap.com/wiki/display/ERPFI/A+way+that+can+quick+debug+into+Validation+or+Substitution+pr...
Are the call points different in QA and Prod? You should use call point 1, Document Header. If It does not work again, you can try BTE's (in T-code: FIBF) for this purpose.
This is payment posting, not invoice. You need to reverse that posting and create a new and correct invoice posting. If reversing is not possible for technical/process/authorization reasons you could post a manual off-setting and clear this two docs ...