Transaction not yet indexed

521QAmEkC3uK23iLLtpXo2W5mMgReXo7ioHQZf16povKhgWdeiGTrEAuDC8aVftNH8wjG8GRy62nCS1WJAy9dLoB

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.