Transaction not yet indexed

5Smsf8SCyQUfH6YwHtymPVsPjWPis9mBHBVMgFJEBt16VzX8ptkDtpBzzv3g87FHbybceGqxbzfN9VB2gHN2oH51

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