discrepancy between accounted value and onhand value

Dear Community,

My Period Closed Reconciliation report has shown discrepancy between Accounted Value and onhand value.

I have run script to verify if there are data corruption and it return zero.

but When I run script to verify if there are back date transaction, it return rows, But all the back date within period.

The question Is :

How to clear up the discrepancy? is there any datafix or script I have to run?

Or do I Have apply patch as I read in oracle document there some patch to apply?

Many Thanks for your help.

Best Regards,

Dian