Transaction not yet indexed

521DDFhSQTJty5WdY8j8Tdpdr7BN56vYfTDSodhNSCxURw9nd2S5RLTPfTiAUtu4uYCLLa7Er6H3o6MfuhAyLp2V

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