removes replicate_physics flag in IsaacEnv as it doesn't work with dr

source/extensions/omni.isaac.orbit_envs/config/extension.toml

 [package]
 
 # Note: Semantic Versioning is used: https://semver.org/
-version = "0.1.0"
+version = "0.1.1"
 
 # Description
 title = "ORBIT Environments"

source/extensions/omni.isaac.orbit_envs/docs/CHANGELOG.rst

 Changelog
 ---------
 
+0.1.1 (2023-01-18)
+~~~~~~~~~~~~~~~~~~
+
+Fixed
+^^^^^
+
+* Fixed a bug in ``Isaac-Velocity-Anymal-C-v0`` where the domain randomization is
+  not applicable if cloning the environments with ``replicate_physics=True``.
+
 0.1.0 (2023-01-17)
 ~~~~~~~~~~~~~~~~~~
 

source/extensions/omni.isaac.orbit_envs/omni/isaac/orbit_envs/isaac_env.py

@@ -146,9 +146,7 @@ class IsaacEnv(gym.Env):
             global_prim_paths = list()
         # clone the scenes into the namespace "/World/envs" based on template namespace
         self.envs_prim_paths = cloner.generate_paths(self.env_ns + "/env", self.num_envs)
-        self.envs_positions = cloner.clone(
-            source_prim_path=self.template_env_ns, prim_paths=self.envs_prim_paths, replicate_physics=True
-        )
+        self.envs_positions = cloner.clone(source_prim_path=self.template_env_ns, prim_paths=self.envs_prim_paths)
         # convert environment positions to torch tensor
         self.envs_positions = torch.tensor(self.envs_positions, dtype=torch.float, device=self.device)
         # filter collisions within each environment instance