Transaction not yet indexed

521ynGwFHhhVqcXH7C8pjQXN1eHfgU2FN54tYga9tM4uBjqudKs4UFrBfiZdt7ftMyFQCvsCBNGNavixAVq6FqAz

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