Transaction not yet indexed

mNuLkuDNkRNE2rGcaEjVpUYueugdqFoSkEMEFjtF5g2fb4iVt3YGs4V14WaYy2JETFQuo5FVFk9fN2s2tFFdSP8

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