Transaction not yet indexed

21aZnkRusVC6gJLZDcUxtcgnQmfAbR3DQfWcrubqwxt7dWQdtiBYStNMCZdRkYGtrxnAwfp6ij5ucH2QuTU5gmPZ

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