diff --git a/lib/render_job.py b/lib/render_job.py
index 7b21226..060b63d 100644
--- a/lib/render_job.py
+++ b/lib/render_job.py
@@ -45,7 +45,9 @@ class RenderJob:
         try:
             job_dict = self.__dict__.copy()
             job_dict['status'] = self.render_status().value
+            job_dict['time_elapsed'] = self.time_elapsed() if type(self.time_elapsed) != str else self.time_elapsed
             job_dict['file_hash'] = self.file_hash if self.file_hash and isinstance(self.file_hash, str) else self.file_hash()
+            job_dict['file_list'] = self.file_list()
             job_dict['worker'] = self.worker.__dict__.copy()
             job_dict['worker']['status'] = job_dict['status']
 
@@ -75,17 +77,35 @@ class RenderJob:
         self.worker.stop()
 
     def time_elapsed(self):
+
+        from string import Template
+
+        class DeltaTemplate(Template):
+            delimiter = "%"
+
+        def strfdelta(tdelta, fmt='%H:%M:%S'):
+            d = {"D": tdelta.days}
+            hours, rem = divmod(tdelta.seconds, 3600)
+            minutes, seconds = divmod(rem, 60)
+            d["H"] = '{:02d}'.format(hours)
+            d["M"] = '{:02d}'.format(minutes)
+            d["S"] = '{:02d}'.format(seconds)
+            t = DeltaTemplate(fmt)
+            return t.substitute(**d)
+
         # calculate elapsed time
-        elapsed_time = 'Unknown'
+        elapsed_time = None
         start_time = self.worker.start_time
         end_time = self.worker.end_time
 
         if start_time:
             if end_time:
-                elapsed_time = str(end_time - start_time)
+                elapsed_time = end_time - start_time
             elif self.render_status() == RenderStatus.RUNNING:
-                elapsed_time = str(datetime.now() - start_time)
-        return elapsed_time
+                elapsed_time = datetime.now() - start_time
+
+        elapsed_time_string = strfdelta(elapsed_time) if elapsed_time else "Unknown"
+        return elapsed_time_string
 
     def frame_count(self):
         return self.worker.total_frames
diff --git a/lib/render_queue.py b/lib/render_queue.py
index faf58cc..e351e19 100755
--- a/lib/render_queue.py
+++ b/lib/render_queue.py
@@ -106,8 +106,10 @@ class RenderQueue:
                             if key in ['date_created']:  # convert date strings back to datetime objects
                                 render_job.__dict__[key] = datetime.fromisoformat(val)
                             else:
-                                render_job.__dict__[key] = val
-                        render_job.__delattr__('status')
+                                import types
+                                if hasattr(render_job, key):
+                                    if getattr(render_job, key) and not isinstance(getattr(render_job, key), types.MethodType):
+                                        render_job.__dict__[key] = val
 
                         # Handle older loaded jobs that were cancelled before closing
                         if render_job.render_status() == RenderStatus.RUNNING:
@@ -116,7 +118,7 @@ class RenderQueue:
                         # finally add back to render queue
                         cls.job_queue.append(render_job)
                     except Exception as e:
-                        logger.error(f"Unable to load job: {job} - {e}")
+                        logger.exception(f"Unable to load job: {job['id']} - {e}")
 
                 cls.last_saved_counts = cls.job_counts()
 
diff --git a/lib/server_helper.py b/lib/server_helper.py
index 5aa501b..82b9cc5 100644
--- a/lib/server_helper.py
+++ b/lib/server_helper.py
@@ -33,10 +33,11 @@ def generate_thumbnail_for_job(job, thumb_video_path, thumb_image_path, max_widt
     else:
         source_path = [job.worker.input_path]  # use source if nothing else
 
-    # Todo: convert image sequence to animated movie
-    valid_formats = ['.mp4', '.mov', '.avi', '.mpg', '.mpeg', '.jpg', '.png', '.exr', '.mxf']
-    is_valid_file_type = any(ele in source_path[0] for ele in valid_formats)
-    if is_valid_file_type and not os.path.exists(thumb_video_path):
-        save_first_frame(source_path=source_path[0], dest_path=thumb_image_path, max_width=max_width)
-        x = threading.Thread(target=generate_thumb_thread, args=(source_path[0],))
-        x.start()
+    if source_path:
+        # Todo: convert image sequence to animated movie
+        valid_formats = ['.mp4', '.mov', '.avi', '.mpg', '.mpeg', '.jpg', '.png', '.exr', '.mxf']
+        is_valid_file_type = any(ele in source_path[0] for ele in valid_formats)
+        if is_valid_file_type and not os.path.exists(thumb_video_path):
+            save_first_frame(source_path=source_path[0], dest_path=thumb_image_path, max_width=max_width)
+            x = threading.Thread(target=generate_thumb_thread, args=(source_path[0],))
+            x.start()