Transaction not yet indexed

MXE3Qk5XyaLPJktH7DafPLpuQFFTtbAuXE46wgWsNXZY2kkxwcHFpde6AcwVTxZPoyNHWHWwpokcdqTAMEgiUk1

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