Transaction not yet indexed

21Npt6mFWh2agfLiB4q6yFXTHPJKZ9DDy3WFDN4ej9HE8z7wpRAbprQEGYATt7K7PyTX79qGGWa1Hfpd8NAcKF3y

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