Transaction not yet indexed

Mm9SnHMkDNDVgfSE3DSshH9hQLUt2VwTVVwWJjrjgcUTRLobcmeNTqCoTPxPBiZXH6oQzHdzrgfmuY9E5dSEx44

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