Transaction not yet indexed

21LngsdB7HDqTcv9Va7hLkQpFN7yaCzaA2qDfEXfaapfKiBnFwkfQ13zLu2QqD6L95JCMVvPbc6Et3YwCEoFQ8vG

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