diff --git a/src/lerobot/envs/libero.py b/src/lerobot/envs/libero.py
index a3e0f17c4..17fc22bbd 100644
--- a/src/lerobot/envs/libero.py
+++ b/src/lerobot/envs/libero.py
@@ -384,8 +384,9 @@ class LiberoEnv(gym.Env):
             }
         )
         observation = self._format_raw_obs(raw_obs)
-        if terminated:
-            self.reset()
+        # Return the terminal observation unchanged. The caller owns resetting after
+        # termination; vector envs created below use NEXT_STEP autoreset. Resetting here
+        # would therefore reset twice and skip an initial state.
         truncated = False
         return observation, reward, terminated, truncated, info
 
@@ -483,6 +484,7 @@ def create_libero_envs(
         print(f"Restricting to task_ids={task_ids_filter}")
 
     is_async = env_cls is gym.vector.AsyncVectorEnv
+    is_sync = env_cls is gym.vector.SyncVectorEnv
 
     out: dict[str, dict[int, Any]] = defaultdict(dict)
     for suite_name in suite_names:
@@ -519,6 +521,10 @@ def create_libero_envs(
                     cached_act_space = lazy.action_space
                     cached_metadata = lazy.metadata
                 out[suite_name][tid] = lazy
+            elif is_sync:
+                out[suite_name][tid] = gym.vector.SyncVectorEnv(
+                    fns, autoreset_mode=gym.vector.AutoresetMode.NEXT_STEP
+                )
             else:
                 out[suite_name][tid] = env_cls(fns)
             print(f"Built vec env | suite={suite_name} | task_id={tid} | n_envs={n_envs}")
diff --git a/src/lerobot/envs/utils.py b/src/lerobot/envs/utils.py
index 8b9c4f94b..6c2286952 100644
--- a/src/lerobot/envs/utils.py
+++ b/src/lerobot/envs/utils.py
@@ -212,7 +212,12 @@ class _LazyAsyncVectorEnv:
 
     def _ensure(self) -> None:
         if self._env is None:
-            self._env = gym.vector.AsyncVectorEnv(self._env_fns, context="forkserver", shared_memory=True)
+            self._env = gym.vector.AsyncVectorEnv(
+                self._env_fns,
+                context="forkserver",
+                shared_memory=True,
+                autoreset_mode=gym.vector.AutoresetMode.NEXT_STEP,
+            )
 
     @property
     def unwrapped(self):