Transaction not yet indexed

MkkbPxsczV9jhomrWHTMYRd5Z6Aqidw6au4Vtrc9ZCXc95EL2TdFeeEnDQxpTJV9dt9X19GftW6MpYEMNr5ex2p

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