diff --git a/em_workflows/lrg_2d_rgb/flow.py b/em_workflows/lrg_2d_rgb/flow.py
index 97770950..793f3656 100644
--- a/em_workflows/lrg_2d_rgb/flow.py
+++ b/em_workflows/lrg_2d_rgb/flow.py
@@ -3,7 +3,7 @@
 
 import SimpleITK as sitk
 from pytools import HedwigZarrImage, HedwigZarrImages
-from prefect import flow, task, unmapped
+from prefect import flow, task
 
 from em_workflows.utils import utils
 from em_workflows.utils import neuroglancer as ng
@@ -208,10 +208,10 @@ def lrg_2d_flow(
         VALID_LRG_2D_RGB_INPUTS,
         single_file=x_file_name,
     )
-    fps = gen_taskio.map(
-        share_name=unmapped(file_share),
-        input_dir=unmapped(input_dir_fp),
-        fp_in=input_fps.result(),
+    fps = gen_taskio.submit(
+        share_name=file_share,
+        input_dir=input_dir_fp,
+        input_fps=input_fps,
     )
     tiffs = convert_png_to_tiff.map(taskio=fps)
     zarrs = gen_zarr.map(taskio=tiffs)
diff --git a/em_workflows/utils/task_io.py b/em_workflows/utils/task_io.py
index 94e1d448..d71ee5d3 100644
--- a/em_workflows/utils/task_io.py
+++ b/em_workflows/utils/task_io.py
@@ -40,19 +40,16 @@ def taskio_handler(func):
         does not pass into downstream tasks
     """
 
-    def wrapper(**kwargs):
-        assert (
-            "taskio" in kwargs
-        ), "Task functions must have `taskio` keyword argument in their definition to use `taskio_handler` definition."
-        prev_taskio: TaskIO = kwargs["taskio"]
+    def wrapper(taskio):
+        prev_taskio: TaskIO = taskio
+
         if prev_taskio.error:
             return prev_taskio
 
         try:
-            new_taskio = func(**kwargs)
+            new_taskio = func(taskio)
         except RuntimeError as e:
-            # We are currently handling only ValueError.
-            # So any other exception will cause pipeline to fail
+            # We are raising errors that are instance of RuntimeError
             new_taskio = TaskIO(
                 file_path=prev_taskio.file_path,
                 output_path=None,
@@ -66,39 +63,40 @@ def wrapper(**kwargs):
                 error="Something went wrong!",
             )
         new_taskio.file_path = prev_taskio.file_path
-
         # if we want to save history of upstream tasks
         # new_taskio.upstream_history = prev_taskio.history
         # new_taskio.upstream_history[func.__name__] = new_taskio
+
         return new_taskio
 
     return wrapper
 
 
 @task
-def gen_response(fps: List[TaskIO], taskios: List[TaskIO]):
+def gen_response(fps: List[TaskIO], assets: List[TaskIO]):
     # turning a list to dict with primary filepath as the key
     etl_items = {
         etl_item.file_path.fp_in: etl_item.file_path.gen_prim_fp_elt()
         for etl_item in fps
     }
 
-    for taskio in taskios:
-        print(f"\n---\nTaskIO being processed for {taskio.file_path.fp_in}\n\n***")
-        etl_item = etl_items[taskio.file_path.fp_in]
-        # if error is already registered... ignore
+    for asset in assets:
+        print(f"\n---\nTaskIO being processed for {asset.file_path.fp_in}\n\n***")
+        etl_item = etl_items[asset.file_path.fp_in]
+
+        # if error is already registered from previous asset... ignore
         if etl_item["status"] == "error":
             continue
 
-        if taskio.error:
+        if asset.error:
             etl_item["status"] = "error"
-            etl_item["message"] = taskio.error
+            etl_item["message"] = asset.error
             etl_item["imageSet"] = None
         else:
-            if isinstance(taskio.data, list):
-                etl_item["imageSet"][0]["assets"].extend(taskio.data)
-            elif isinstance(taskio.data, dict):
-                etl_item["imageSet"][0]["assets"].append(taskio.data)
+            if isinstance(asset.data, list):
+                etl_item["imageSet"][0]["assets"].extend(asset.data)
+            elif isinstance(asset.data, dict):
+                etl_item["imageSet"][0]["assets"].append(asset.data)
 
     resp = list(etl_items.values())
     return resp
@@ -111,12 +109,9 @@ def gen_response(fps: List[TaskIO], taskios: List[TaskIO]):
     result_serializer=Config.pickle_serializer,
     result_storage_key="{flow_run.id}__gen_fps",
 )
-def gen_taskio(share_name: str, input_dir: Path, fp_in: Path) -> TaskIO:
-    file_path = FilePath(share_name=share_name, input_dir=input_dir, fp_in=fp_in)
-    return TaskIO(file_path=file_path, output_path=file_path)
-
-
-@task
-def gen_prim_fps(taskio: TaskIO) -> Dict:
-    base_elt = taskio.file_path.gen_prim_fp_elt()
-    return base_elt
+def gen_taskio(share_name: str, input_dir: Path, input_fps: List[Path]) -> TaskIO:
+    result = list()
+    for fp_in in input_fps:
+        file_path = FilePath(share_name=share_name, input_dir=input_dir, fp_in=fp_in)
+        result.append(TaskIO(file_path=file_path, output_path=file_path))
+    return result
diff --git a/em_workflows/utils/utils.py b/em_workflows/utils/utils.py
index 3f50a2ae..52c4b07c 100644
--- a/em_workflows/utils/utils.py
+++ b/em_workflows/utils/utils.py
@@ -682,16 +682,16 @@ def send_callback_body(
 
 def copy_workdirs_and_cleanup_hook(flow, flow_run, state):
     stored_result = Config.local_storage.read_path(f"{flow_run.id}__gen_fps")
-    fps: List[FilePath] = Config.pickle_serializer.loads(
+    taskio_fps = Config.pickle_serializer.loads(
         json.loads(stored_result)["data"].encode()
     )
     parameters = flow_run.parameters
-    x_keep_workdir = parameters["x_keep_workdir"]
+    x_keep_workdir = parameters.get("x_keep_workdir", False)
 
-    for fp in fps:
+    for fp in taskio_fps:
         copy_workdir_logs.fn(file_path=fp)
 
-    cleanup_workdir.fn(fps, x_keep_workdir)
+    cleanup_workdir.fn(taskio_fps, x_keep_workdir)
 
 
 def callback_with_cleanup(