diff --git a/alab_management/experiment_manager.py b/alab_management/experiment_manager.py
index a2542379..16225083 100644
--- a/alab_management/experiment_manager.py
+++ b/alab_management/experiment_manager.py
@@ -5,7 +5,7 @@
 tasks and samples and mark the finished tasks in the database when it is
 done.
 """
-
+import time
 from typing import Any
 
 from .config import AlabOSConfig
@@ -46,7 +46,7 @@ def run(self):
         )
         while True:
             self._loop()
-            # time.sleep()
+            time.sleep(1)
 
     def _loop(self):
         self.handle_pending_experiments()
diff --git a/alab_management/resource_manager/resource_manager.py b/alab_management/resource_manager/resource_manager.py
index f9124f2e..01119668 100644
--- a/alab_management/resource_manager/resource_manager.py
+++ b/alab_management/resource_manager/resource_manager.py
@@ -49,7 +49,7 @@ def run(self):
         """Start the loop."""
         while True:
             self._loop()
-            # time.sleep(1)
+            time.sleep(0.5)
 
     def _loop(self):
         self.handle_released_resources()
@@ -85,7 +85,8 @@ def _handle_requested_resources(self, request_entry: dict[str, Any]):
 
             task_status = self.task_view.get_status(task_id=task_id)
             if (task_status != TaskStatus.REQUESTING_RESOURCES or
-                    self.task_view.get_tasks_to_be_canceled(canceling_progress=CancelingProgress.WORKER_NOTIFIED)):
+                    task_id in {task["task_id"] for task in self.task_view.get_tasks_to_be_canceled(
+                        canceling_progress=CancelingProgress.WORKER_NOTIFIED)}):
                 # this implies the Task has been cancelled or errored somewhere else in the chain -- we should
                 # not allocate any resources to the broken Task.
                 self.update_request_status(
diff --git a/alab_management/resource_manager/resource_requester.py b/alab_management/resource_manager/resource_requester.py
index 2988b5c5..496adaaa 100644
--- a/alab_management/resource_manager/resource_requester.py
+++ b/alab_management/resource_manager/resource_requester.py
@@ -2,7 +2,7 @@
 TaskLauncher is the core module of the system,
 which actually executes the tasks.
 """
-
+import concurrent
 import time
 from concurrent.futures import Future
 from datetime import datetime
@@ -28,6 +28,14 @@
 ]  # the raw request sent by task process
 
 
+class CombinedTimeoutError(TimeoutError, concurrent.futures.TimeoutError):
+    """
+    Combined TimeoutError.
+
+    If you catch either TimeoutError or concurrent.futures.TimeoutError, this will catch both.
+    """
+
+
 class ResourcesRequest(BaseModel):
     """
     This class is used to validate the resource request. Each request should have a format of
@@ -231,7 +239,12 @@ def request_resources(
         )  # DB_ACCESS_OUTSIDE_VIEW
         _id: ObjectId = cast(ObjectId, result.inserted_id)
         self._waiting[_id] = {"f": f, "device_str_to_request": device_str_to_request}
-        result = f.result(timeout=timeout)
+        try:
+            result = f.result(timeout=timeout)
+        except concurrent.futures.TimeoutError as e:
+            raise CombinedTimeoutError(
+                f"Request {result.inserted_id} timed out after {timeout} seconds."
+            ) from e
         return {
             **self._post_process_requested_resource(
                 devices=result["devices"],
diff --git a/alab_management/scripts/launch_lab.py b/alab_management/scripts/launch_lab.py
index f77c1c10..d79b6929 100644
--- a/alab_management/scripts/launch_lab.py
+++ b/alab_management/scripts/launch_lab.py
@@ -87,7 +87,7 @@ def launch_lab(host, port, debug):
 
     dashboard_thread.daemon = experiment_manager_thread.daemon = (
         task_launcher_thread.daemon
-    ) = device_manager_thread.daemon = True
+    ) = device_manager_thread.daemon = resource_manager_thread.daemon = True
 
     dashboard_thread.start()
     device_manager_thread.start()
diff --git a/alab_management/task_manager/task_manager.py b/alab_management/task_manager/task_manager.py
index 2f02d8ba..7ccc268c 100644
--- a/alab_management/task_manager/task_manager.py
+++ b/alab_management/task_manager/task_manager.py
@@ -34,7 +34,7 @@ def run(self):
         """Start the loop."""
         while True:
             self._loop()
-            # time.sleep(1)
+            time.sleep(1)
 
     def _loop(self):
         self.handle_tasks_to_be_canceled()
diff --git a/tests/test_launch.py b/tests/test_launch.py
index f7199dbc..75d91d40 100644
--- a/tests/test_launch.py
+++ b/tests/test_launch.py
@@ -97,7 +97,7 @@ def compose_exp(exp_name, num_samples):
             exp_id = ObjectId(resp_json["data"]["exp_id"])
             self.assertTrue("success", resp_json["status"])
             exp_ids.append(exp_id)
-        time.sleep(30)
+        time.sleep(50)
         self.assertEqual(num_of_tasks, self.task_view._task_collection.count_documents({}))
 
         self.assertTrue(
@@ -153,7 +153,7 @@ def compose_exp(exp_name, error_task):
             exp_id = ObjectId(resp_json["data"]["exp_id"])
             self.assertTrue("success", resp_json["status"])
             exp_ids.append(exp_id)
-            time.sleep(10)
+            time.sleep(20)
 
             pending_user_input = requests.get("http://127.0.0.1:8896/api/userinput/pending").json()
             self.assertEqual(len(pending_user_input["pending_requests"].get(str(exp_id), [])), 1)
@@ -206,6 +206,14 @@ def compose_exp(exp_name):
                         "parameters": {},
                         "samples": ["test_sample"],
                     },
+                    {
+                        "type": "Heating",
+                        "prev_tasks": [1],
+                        "parameters": {
+                            "setpoints": ((1, 2),),
+                        },
+                        "samples": ["test_sample"],
+                    },
                 ],
             }