payable invoices showing as invalid when they are fetched from email using IDR

Summary: when we go to the manage invoice page in oracle fusion payable module, invoices when searched with "invalid" a few invoices come up, and when opened they have invoice number same as the one that already exists in the system, due to some reason the invoice that was imported earlier also show invalid if another invoice with the same number is imported. some invoices are also shown as "Duplicate: invoice-number"

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Version (include the version you are using, if applicable): 24C

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