Transaction not yet indexed

MUkU1vdKy4mn3n76LH8sSrF1c4sWnRxJUXmgdgvFfCeg5eYsmgPvGTpajSnNV7g9ASroc6yZ3CxdPLzciUH3Jb4

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