Transaction not yet indexed

21EKcTZXHebMA3H68vFNupJv6vzk5uSibd2XPR3dCJvNP8ZkreJEbVrU38x8V1u8pWb89zkLWJwMs1M7J4wEEk64

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