diff --git a/example_15/CMakeLists.txt b/example_15/CMakeLists.txt
index 2ca67931b..53ab216dc 100644
--- a/example_15/CMakeLists.txt
+++ b/example_15/CMakeLists.txt
@@ -28,9 +28,8 @@ install(
 if(BUILD_TESTING)
   find_package(ament_cmake_pytest REQUIRED)
 
-  # TODO(christophfroehlich) deactivated because of bug in spawner
-  # ament_add_pytest_test(test_rrbot_namespace_launch test/test_rrbot_namespace_launch.py)
-  # ament_add_pytest_test(test_multi_controller_manager_launch test/test_multi_controller_manager_launch.py)
+  ament_add_pytest_test(test_rrbot_namespace_launch test/test_rrbot_namespace_launch.py)
+  ament_add_pytest_test(test_multi_controller_manager_launch test/test_multi_controller_manager_launch.py)
 
 endif()
 
diff --git a/example_15/bringup/launch/rrbot_base.launch.py b/example_15/bringup/launch/rrbot_base.launch.py
index b64b4e192..6852c117c 100644
--- a/example_15/bringup/launch/rrbot_base.launch.py
+++ b/example_15/bringup/launch/rrbot_base.launch.py
@@ -220,20 +220,11 @@ def generate_launch_description():
         )
     )
 
-    # Delay start of joint_state_broadcaster after `robot_controller`
-    # TODO(anyone): This is a workaround for flaky tests. Remove when fixed.
-    delay_joint_state_broadcaster_after_robot_controller_spawner = RegisterEventHandler(
-        event_handler=OnProcessExit(
-            target_action=robot_controller_spawner,
-            on_exit=[joint_state_broadcaster_spawner],
-        )
-    )
-
     nodes = [
         control_node,
         robot_state_pub_node,
         robot_controller_spawner,
-        delay_joint_state_broadcaster_after_robot_controller_spawner,
+        joint_state_broadcaster_spawner,
         delay_rviz_after_joint_state_broadcaster_spawner,
     ]
 
diff --git a/example_15/bringup/launch/rrbot_namespace.launch.py b/example_15/bringup/launch/rrbot_namespace.launch.py
index b3c70aca6..a39f5dee4 100644
--- a/example_15/bringup/launch/rrbot_namespace.launch.py
+++ b/example_15/bringup/launch/rrbot_namespace.launch.py
@@ -128,32 +128,13 @@ def generate_launch_description():
         )
     )
 
-    # Delay start of joint_state_broadcaster after `robot_controller`
-    # TODO(anyone): This is a workaround for flaky tests. Remove when fixed.
-    delay_joint_state_broadcaster_after_robot_controller_spawner = RegisterEventHandler(
-        event_handler=OnProcessExit(
-            target_action=robot_forward_position_controller_spawner,
-            on_exit=[joint_state_broadcaster_spawner],
-        )
-    )
-
-    # Delay start of robot_controller after `joint_state_broadcaster`
-    delay_robot_position_trajectory_controller_spawner_after_joint_state_broadcaster_spawner = (
-        RegisterEventHandler(
-            event_handler=OnProcessExit(
-                target_action=joint_state_broadcaster_spawner,
-                on_exit=[robot_position_trajectory_controller_spawner],
-            )
-        )
-    )
-
     nodes = [
         control_node,
         robot_state_pub_node,
         delay_rviz_after_joint_state_broadcaster_spawner,
         robot_forward_position_controller_spawner,
-        delay_joint_state_broadcaster_after_robot_controller_spawner,
-        delay_robot_position_trajectory_controller_spawner_after_joint_state_broadcaster_spawner,
+        joint_state_broadcaster_spawner,
+        robot_position_trajectory_controller_spawner,
     ]
 
     return LaunchDescription(declared_arguments + nodes)