Transaction not yet indexed

Sun91jWTKff9CG6hr9Uwv7Zg4oHvfaFRcmZgRPzKmfsPKJnLdDcYF8p8hkdPDiCvxmBRdCjVaggTRtwGkzWgqse

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