Transaction not yet indexed

MK3ffDCH5Kb3dDMJixY3hvcPG4gvZqpsYj28QEjHj9yDyuxNAkAMc2RRNfMPf2PjVvREc6g3iznfXT6DcP8AqNi

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