diff --git a/dccmd/__init__.py b/dccmd/__init__.py
index 9affc30..8d25060 100644
--- a/dccmd/__init__.py
+++ b/dccmd/__init__.py
@@ -4,7 +4,7 @@
 
 """
 
-__version__ = "0.4.2-SNAPSHOT"
+__version__ = "0.4.2"
 
 # std imports
 import sys
@@ -236,8 +236,10 @@ async def _upload():
             distrib_node_id = node_info.authParentId
         if node_info.type == NodeType.room:
             distrib_node_id = node_info.id
+        else:
+            distrib_node_id = None
 
-        if node_info.isEncrypted is True:
+        if node_info.isEncrypted is True and distrib_node_id is not None:
             await distribute_missing_keys(dracoon=dracoon, room_id=distrib_node_id)
 
         await dracoon.logout()
@@ -368,12 +370,12 @@ async def _create_room():
         # remove base url from path
         parsed_path = parse_new_path(full_path=dir_path)
 
-        if parsed_path != "/":
-            parent_node = await dracoon.nodes.get_node_from_path(path=parsed_path)
-            parent_id = parent_node.id
-        elif parsed_path == "/":
+        if parsed_path == "/":
             parent_node = None
             parent_id = 0
+        else:
+            parent_node = await dracoon.nodes.get_node_from_path(path=parsed_path)
+            parent_id = parent_node.id
 
         room_name = parse_file_name(full_path=dir_path)
 
@@ -397,10 +399,10 @@ async def _create_room():
 
         if admin_user and parent_id != 0:
             user_info = await find_user_by_username(dracoon=dracoon, user_name=admin_user, as_user_manager=False, room_id=parent_id)
-            payload = dracoon.nodes.make_room(name=room_name, parent_id=parent_id, inherit_perms=False, admin_ids=[user_info.userInfo.id])
+            payload = dracoon.nodes.make_room(name=room_name, parent_id=parent_id, inherit_perms=False, admin_ids=[user_info.userInfo.id]) # type: ignore
         if admin_user and parent_id == 0:
             user_info = await find_user_by_username(dracoon=dracoon, user_name=admin_user)
-            payload = dracoon.nodes.make_room(name=room_name, inherit_perms=False, admin_ids=[user_info.id], parent_id=None)
+            payload = dracoon.nodes.make_room(name=room_name, inherit_perms=False, admin_ids=[user_info.id], parent_id=None) # type: ignore
         else:
             payload = dracoon.nodes.make_room(
             name=room_name, parent_id=parent_id, inherit_perms=True
@@ -612,14 +614,12 @@ async def _list_nodes():
 
         # remove base url from path
         parsed_path = parse_path(full_path=source_path)
-
-        if parsed_path != "/":
-            parent_node = await dracoon.nodes.get_node_from_path(path=parsed_path)
-        elif parsed_path == "/":
+      
+        if parsed_path == "/":
             parent_node = None
             parent_id = 0
-
-        if parent_node:
+        else:
+            parent_node = await dracoon.nodes.get_node_from_path(path=parsed_path)
             parent_id = parent_node.id
 
         if parent_node is None and parsed_path != "/":
@@ -721,9 +721,13 @@ async def _list_nodes():
                     )
                     sys.exit(1)
 
-        if long_list and parent_id != 0 and human_readable:
-            typer.echo(f"total {to_readable_size(parent_node.size)}")
-        elif long_list and parent_id != 0:
+        if long_list and parent_node is not None and human_readable:
+            if parent_node.size:
+                size = parent_node.size
+            else:
+                size = 0
+            typer.echo(f"total {to_readable_size(size)}")
+        elif long_list and parent_node is not None:
             typer.echo(f"total {parent_node.size}")
 
         for node in nodes.items:
@@ -861,7 +865,11 @@ async def _download():
             finally:
                 await dracoon.logout()
         elif is_file_path:
-            transfer = DCTransferList(total=node_info.size, file_count=1)
+            if node_info.size:
+                size = node_info.size
+            else:
+                size = 0
+            transfer = DCTransferList(total=size, file_count=1)
             download_job = DCTransfer(transfer=transfer)
 
             try:
diff --git a/dccmd/main/upload/__init__.py b/dccmd/main/upload/__init__.py
index f47c2a2..fc1781b 100644
--- a/dccmd/main/upload/__init__.py
+++ b/dccmd/main/upload/__init__.py
@@ -12,7 +12,7 @@
 
 import typer
 from httpx import WriteTimeout
-from dracoon import DRACOON
+from dracoon import DRACOON, OAuth2ConnectionType
 from dracoon.errors import (
     InvalidPathError,
     HTTPConflictError,
@@ -201,6 +201,8 @@ async def process_batch(batch):
         # process 10 folders per batch
         for reqs in dracoon.batch_process(coro_list=folder_reqs, batch_size=velocity):
             try:
+                # get new token to avoid rate limiting
+                await dracoon.connect(connection_type=OAuth2ConnectionType.refresh_token)
                 await asyncio.gather(*reqs)
             except HTTPConflictError:
                 pass
@@ -297,6 +299,8 @@ async def bulk_upload(
             coro_list=upload_reqs, batch_size=concurrent_reqs
         ):
         try:
+            # get fresh token per batch (avoid rate limiting)
+            await dracoon.connect(connection_type=OAuth2ConnectionType.refresh_token)
             await asyncio.gather(*batch)
         except HTTPConflictError:
             # ignore file already exists error
@@ -329,7 +333,7 @@ def create_folder(name: str, parent_id: int, dracoon: DRACOON):
     folder = dracoon.nodes.make_folder(name=name, parent_id=parent_id)
     return dracoon.nodes.create_folder(folder=folder, raise_on_err=True)
 
-def validate_file_name(name: str) -> str:
+def validate_file_name(name: str) -> bool:
     """ validate file name """
     # return false if name length is more than 150 chars
     if len(name) > 150:
diff --git a/pyproject.toml b/pyproject.toml
index 1e7292d..86ce71f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "dccmd"
-version = "0.4.1"
+version = "0.4.2"
 description = "DRACOON Commander – CLI client for DRACOON Cloud (dracoon.com)"
 authors = ["Octavio Simone <70800577+unbekanntes-pferd@users.noreply.github.com>"]
 license = "Apache-2.0"