Accounted and paid Invoice goes to "Needs Re-validation" Status

A User has created Invoice, account it, and paid it. When running create accounting, It does not Account payment, And the invoice amount mismatch with invoice line amount, plus invoice goes to "Needs-re validation status, Accounting Status " Partial" and also places a hold of "Total of Invoice Lines does not equal Invoice Amount"

In Which case is it possible? Is it a Bug? or can be a user error?

Please guide.

Regards,

Sid.