Transaction not yet indexed

sMp2u18qNv1yc4USS9ByHfeFdeCNV6GSwGMSXApbV57mm3g7qh1k9pK7pC9ZqZWemZf377gJU1N5y8dBUjvYhB2

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