diff --git a/lib/render_workers/base_worker.py b/lib/render_workers/base_worker.py
index c544111..bd9f34f 100644
--- a/lib/render_workers/base_worker.py
+++ b/lib/render_workers/base_worker.py
@@ -64,7 +64,6 @@ class BaseRenderWorker(object):
         self.status = RenderStatus.NOT_STARTED
         self.warnings = []
         self.errors = []
-        self.halt_on_errors = True
         self.failed_attempts = 0
         self.maximum_attempts = 1
 
@@ -197,10 +196,10 @@ class BaseRenderWorker(object):
             return self.__thread.is_alive()
         return False
 
-    def log_error(self, error_line):
+    def log_error(self, error_line, halt_render=False):
         logger.error(error_line)
         self.errors.append(error_line)
-        if self.halt_on_errors:
+        if halt_render:
             self.stop(is_error=True)
 
     def stop(self, is_error=False):
diff --git a/lib/render_workers/blender_worker.py b/lib/render_workers/blender_worker.py
index 3f167cb..67626a4 100644
--- a/lib/render_workers/blender_worker.py
+++ b/lib/render_workers/blender_worker.py
@@ -87,7 +87,9 @@ class BlenderRenderWorker(BaseRenderWorker):
                 logger.debug(
                     'Frame:{0} | Mem:{1} | Time:{2} | Remaining:{3}'.format(self.current_frame, memory_use,
                                                                             time_elapsed, time_remaining))
-        elif "file doesn't exist" in line.lower() or 'error' in line.lower():
+        elif "file doesn't exist" in line.lower():
+            self.log_error(line, halt_render=True)
+        elif 'error' in line.lower():
             self.log_error(line)
         elif 'Saved' in line or 'Saving' in line or 'quit' in line:
             match = re.match(r'Time: (.*) \(Saving', line)
@@ -125,7 +127,7 @@ class BlenderRenderWorker(BaseRenderWorker):
 
             try:
                 image_sequence_to_video(source_glob_pattern=glob_pattern,
-                                        output_path=self.output_path + '_preview.mp4',
+                                        output_path=self.output_path + '.mp4',
                                         framerate=self.scene_info['fps'])
                 logger.info('Successfully generated preview image sequence')
             except Exception as e: