Transaction not yet indexed

4C21yU1YubeECrnJ4HJRTiE9CnWLXRAEfzLGZBJ37BaR4n1JZg9fxZRjUe7fhmfv3sgp8X2Hc5PdeFoj7K7TBij

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