Transaction not yet indexed

MeM6zmTSww9FVbz9W9aLeKpEedtPFCYNu97DXvsRzQdo3WMEkSsJyBaGSwciRVv1CNFm6aMaufictXRBfpKPiu5

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