Transaction not yet indexed

MKTcjuwXSBUztsMEemNpTJQqhin4irFbJ4o7pT5UFUppDtaUvNK9MetdPyYGaDHNsnqBvcTMPrPF2VWqkq8xLt8

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