fix(muta): flush mempool after storage

core/consensus/src/engine.rs

@@ -195,10 +195,6 @@ impl<Adapter: ConsensusAdapter + 'static> Engine<FixedPill> for ConsensusEngine<
             }
         };
 
-        self.adapter
-            .flush_mempool(ctx.clone(), &ordered_tx_hashes)
-            .await?;
-
         // Execute transactions
         self.exec(
             pill.block.header.order_root.clone(),
@@ -220,6 +216,10 @@ impl<Adapter: ConsensusAdapter + 'static> Engine<FixedPill> for ConsensusEngine<
         self.update_status(height, metadata, pill.block, proof, full_txs)
             .await?;
 
+        self.adapter
+            .flush_mempool(ctx.clone(), &ordered_tx_hashes)
+            .await?;
+
         self.adapter.broadcast_height(ctx.clone(), height).await?;
 
         let mut set = self.exemption_hash.write();