diff --git a/.gitignore b/.gitignore
index e80a817..6e61a05 100644
--- a/.gitignore
+++ b/.gitignore
@@ -118,4 +118,6 @@ cython_debug/
 
 tutorials/.ipynb_checkpoints/*
 docs/_build/*
-examples/func_fit/evolving_state.pkl
\ No newline at end of file
+examples/func_fit/evolving_state.pkl
+
+src/evox/*
\ No newline at end of file
diff --git a/examples/with_evox/walker2d_evox.py b/examples/with_evox/walker2d_evox.py
index 263ba1c..4df46f7 100644
--- a/examples/with_evox/walker2d_evox.py
+++ b/examples/with_evox/walker2d_evox.py
@@ -48,7 +48,7 @@ def nan2inf(x):
 workflow = workflows.StdWorkflow(
     algorithm=evox_algorithm,
     problem=problem,
-    candidate_transforms=[jax.jit(jax.vmap(evox_algorithm.transform))],
+    solution_transforms=[jax.jit(jax.vmap(evox_algorithm.transform))],
     fitness_transforms=[nan2inf],
     monitors=[monitor],
     opt_direction="max",
@@ -62,5 +62,5 @@ state = workflow.enable_multi_devices(state)
 
 # run the workflow for 100 steps
 for i in range(100):
-    train_info, state = workflow.step(state)
+    state = workflow.step(state)
     monitor.show()
diff --git a/src/tensorneat/common/evox_adaptors/tensorneat_monitor.py b/src/tensorneat/common/evox_adaptors/tensorneat_monitor.py
index 26c7eda..73aba98 100644
--- a/src/tensorneat/common/evox_adaptors/tensorneat_monitor.py
+++ b/src/tensorneat/common/evox_adaptors/tensorneat_monitor.py
@@ -44,22 +44,35 @@ class TensorNEATMonitor(Monitor):
             if not os.path.exists(self.genome_dir):
                 os.makedirs(self.genome_dir)
 
+    def clear_history(self):
+        self.alg_state: TensorNEATState = None
+        self.fitness = None
+        self.best_fitness = -np.inf
+        self.best_genome = None
+
     def hooks(self):
         return ["pre_tell"]
 
-    def pre_tell(self, state: EvoXState, cand_sol, transformed_cand_sol, fitness, transformed_fitness):
+    def pre_tell(self, monitor_state, workflow_state, transformed_fitness):
         io_callback(
             self.store_info,
             None,
-            state,
+            workflow_state,
             transformed_fitness,
         )
+        return monitor_state 
 
     def store_info(self, state: EvoXState, fitness):
         self.alg_state: TensorNEATState = state.query_state("algorithm").alg_state
         self.fitness = jax.device_get(fitness)
 
     def show(self):
+        io_callback(
+            self._show,
+            None
+        )
+
+    def _show(self):
         pop = self.tensorneat_algorithm.ask(self.alg_state)
         generation = int(self.alg_state.generation)