Transaction not yet indexed

MRKNYbMJ6hpTXNLD27Q7SJaomrXPnADuCxANNiCkT7t8B8mnfRDkPPqfZs8WT4dVRmNvb6AVWHfiYF5GHvGryzA

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