diff --git a/main.spec b/main.spec
index adfa183..c0bb049 100644
--- a/main.spec
+++ b/main.spec
@@ -55,7 +55,7 @@ if platform.system() == 'Darwin':  # macOS
         a.datas,
         strip=True,
         name=f'{APP_NAME}.app',
-        icon=None,
+        icon='resources/Server.png',
         bundle_identifier=None,
         version=APP_VERSION
     )
diff --git a/server.py b/server.py
index 949bec2..24fa882 100755
--- a/server.py
+++ b/server.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-from init import run
+from src.init import run
 
 if __name__ == '__main__':
     run(server_only=True)
diff --git a/src/api/preview_manager.py b/src/api/preview_manager.py
index f2a454a..6f9db38 100644
--- a/src/api/preview_manager.py
+++ b/src/api/preview_manager.py
@@ -17,7 +17,7 @@ class PreviewManager:
     _running_jobs = {}
 
     @classmethod
-    def __generate_job_preview_worker(cls, job, replace_existing=False, max_width=320):
+    def __generate_job_preview_worker(cls, job, replace_existing=False, max_width=480):
 
         # Determine best source file to use for thumbs
         job_file_list = job.file_list()
diff --git a/src/engines/blender/blender_worker.py b/src/engines/blender/blender_worker.py
index da06a2e..e8414f0 100644
--- a/src/engines/blender/blender_worker.py
+++ b/src/engines/blender/blender_worker.py
@@ -31,6 +31,12 @@ class BlenderRenderWorker(BaseRenderWorker):
             cmd.append('-b')
         cmd.append(self.input_path)
 
+        # Set Render Engine
+        blender_engine = self.args.get('engine')
+        if blender_engine:
+            blender_engine = blender_engine.upper()
+            cmd.extend(['-E', blender_engine])
+
         # Start Python expressions - # todo: investigate splitting into separate 'setup' script
         cmd.append('--python-expr')
         python_exp = 'import bpy; bpy.context.scene.render.use_overwrite = False;'
@@ -40,8 +46,7 @@ class BlenderRenderWorker(BaseRenderWorker):
         if custom_camera:
             python_exp = python_exp + f"bpy.context.scene.camera = bpy.data.objects['{custom_camera}'];"
 
-        # Set Render Device (gpu/cpu/any)
-        blender_engine = self.args.get('engine', 'BLENDER_EEVEE').upper()
+        # Set Render Device for Cycles (gpu/cpu/any)
         if blender_engine == 'CYCLES':
             render_device = self.args.get('render_device', 'any').lower()
             if render_device not in {'any', 'gpu', 'cpu'}:
@@ -66,7 +71,7 @@ class BlenderRenderWorker(BaseRenderWorker):
         # Remove the extension only if it is not composed entirely of digits
         path_without_ext = main_part if not ext[1:].isdigit() else self.output_path
         path_without_ext += "_"
-        cmd.extend(['-E', blender_engine, '-o', path_without_ext, '-F', export_format])
+        cmd.extend(['-o', path_without_ext, '-F', export_format])
 
         # set frame range
         cmd.extend(['-s', self.start_frame, '-e', self.end_frame, '-a'])
diff --git a/src/engines/engine_manager.py b/src/engines/engine_manager.py
index 77018f8..a5afb35 100644
--- a/src/engines/engine_manager.py
+++ b/src/engines/engine_manager.py
@@ -305,18 +305,21 @@ class EngineDownloadWorker(threading.Thread):
         self.cpu = cpu
 
     def run(self):
-        existing_download = EngineManager.is_version_downloaded(self.engine, self.version, self.system_os, self.cpu)
-        if existing_download:
-            logger.info(f"Requested download of {self.engine} {self.version}, but local copy already exists")
-            return existing_download
+        try:
+            existing_download = EngineManager.is_version_downloaded(self.engine, self.version, self.system_os, self.cpu)
+            if existing_download:
+                logger.info(f"Requested download of {self.engine} {self.version}, but local copy already exists")
+                return existing_download
 
-        # Get the appropriate downloader class based on the engine type
-        EngineManager.engine_with_name(self.engine).downloader().download_engine(
-            self.version, download_location=EngineManager.engines_path, system_os=self.system_os, cpu=self.cpu,
-            timeout=300)
-
-        # remove itself from the downloader list
-        EngineManager.download_tasks.remove(self)
+            # Get the appropriate downloader class based on the engine type
+            EngineManager.engine_with_name(self.engine).downloader().download_engine(
+                self.version, download_location=EngineManager.engines_path, system_os=self.system_os, cpu=self.cpu,
+                timeout=300)
+        except Exception as e:
+            logger.error(f"Error in download worker: {e}")
+        finally:
+            # remove itself from the downloader list
+            EngineManager.download_tasks.remove(self)
 
 
 if __name__ == '__main__':
diff --git a/src/init.py b/src/init.py
index 794ca62..e140bb9 100644
--- a/src/init.py
+++ b/src/init.py
@@ -1,6 +1,7 @@
 import logging
 import multiprocessing
 import os
+import platform
 import socket
 import sys
 import threading
diff --git a/src/ui/main_window.py b/src/ui/main_window.py
index e56782a..cf3ba14 100644
--- a/src/ui/main_window.py
+++ b/src/ui/main_window.py
@@ -29,7 +29,8 @@ from src.ui.widgets.proportional_image_label import ProportionalImageLabel
 from src.ui.widgets.statusbar import StatusBar
 from src.ui.widgets.toolbar import ToolBar
 from src.api.serverproxy_manager import ServerProxyManager
-from src.utilities.misc_helper import launch_url
+from src.utilities.misc_helper import launch_url, iso_datestring_to_formatted_datestring
+from version import APP_NAME
 
 logger = logging.getLogger()
 
@@ -63,7 +64,7 @@ class MainWindow(QMainWindow):
         self.buffer_handler = None
 
         # Window-Settings
-        self.setWindowTitle("Zordon")
+        self.setWindowTitle(APP_NAME)
         self.setGeometry(100, 100, 900, 800)
         central_widget = QWidget(self)
         self.setCentralWidget(central_widget)
@@ -256,7 +257,7 @@ class MainWindow(QMainWindow):
             self.job_list_view.clear()
             self.refresh_job_headers()
 
-        job_fetch = self.current_server_proxy.get_all_jobs(ignore_token=clear_table)
+        job_fetch = self.current_server_proxy.get_all_jobs(ignore_token=False)
         if job_fetch:
             num_jobs = len(job_fetch)
             self.job_list_view.setRowCount(num_jobs)
@@ -276,10 +277,11 @@ class MainWindow(QMainWindow):
                 renderer = f"{job.get('renderer', '')}-{job.get('renderer_version')}"
                 priority = str(job.get('priority', ''))
                 total_frames = str(job.get('total_frames', ''))
+                date_created_string = iso_datestring_to_formatted_datestring(job['date_created'])
 
                 items = [QTableWidgetItem(job['id']), QTableWidgetItem(name), QTableWidgetItem(renderer),
                          QTableWidgetItem(priority), QTableWidgetItem(display_status), QTableWidgetItem(time_elapsed),
-                         QTableWidgetItem(total_frames), QTableWidgetItem(job['date_created'])]
+                         QTableWidgetItem(total_frames), QTableWidgetItem(date_created_string)]
 
                 for col, item in enumerate(items):
                     self.job_list_view.setItem(row, col, item)
@@ -591,3 +593,21 @@ class MainWindow(QMainWindow):
         if file_name:
             self.new_job_window = NewRenderJobForm(file_name)
             self.new_job_window.show()
+
+
+if __name__ == "__main__":
+    # lazy load GUI frameworks
+    from PyQt6.QtWidgets import QApplication
+
+    # load application
+    # QtCore.QCoreApplication.setAttribute(QtCore.Qt.ApplicationAttribute.AA_MacDontSwapCtrlAndMeta)
+    app: QApplication = QApplication(sys.argv)
+
+    # configure main main_window
+    main_window = MainWindow()
+    # main_window.buffer_handler = buffer_handler
+    app.setActiveWindow(main_window)
+
+    main_window.show()
+
+    sys.exit(app.exec())
diff --git a/src/utilities/misc_helper.py b/src/utilities/misc_helper.py
index 1278e3c..f7fa4ef 100644
--- a/src/utilities/misc_helper.py
+++ b/src/utilities/misc_helper.py
@@ -210,3 +210,18 @@ def num_to_alphanumeric(num):
         result += characters[remainder]
 
     return result[::-1]  # Reverse the result to get the correct alphanumeric string
+
+
+def iso_datestring_to_formatted_datestring(iso_date_string):
+    from dateutil import parser
+    import pytz
+
+    # Parse the ISO date string into a datetime object and convert timezones
+    date = parser.isoparse(iso_date_string).astimezone(pytz.UTC)
+    local_timezone = datetime.now().astimezone().tzinfo
+    date_local = date.astimezone(local_timezone)
+
+    # Format the date to the desired readable yet sortable format with 12-hour time
+    formatted_date = date_local.strftime('%Y-%m-%d %I:%M %p')
+
+    return formatted_date
diff --git a/src/utilities/zeroconf_server.py b/src/utilities/zeroconf_server.py
index aa43fd4..e1d526e 100644
--- a/src/utilities/zeroconf_server.py
+++ b/src/utilities/zeroconf_server.py
@@ -32,9 +32,11 @@ class ZeroconfServer:
     def start(cls, listen_only=False):
         if not cls.service_type:
             raise RuntimeError("The 'configure' method must be run before starting the zeroconf server")
-        logger.debug("Starting zeroconf service")
-        if not listen_only:
+        elif not listen_only:
+            logger.debug(f"Starting zeroconf service")
             cls._register_service()
+        else:
+            logger.debug(f"Starting zeroconf service - Listen only mode")
         cls._browse_services()
 
     @classmethod