Transaction not yet indexed

b21Mc1pWfjxRxSjY6mqzLURDi7P2w4H8vkQfE5fH8qp1oQYSsBgifVLSiQTC4Z9aFwdRz1epFP76FgMkHjtrN39

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