pitivi stderr output

anthony@ghost ~/Movies/RecordMyDesktopV2 $ pitivi
Missing soft dependency:
- cvtracker GStreamer element not found on the system
    -> enables object tracking
Missing soft dependency:
- librosa not found on the system
    -> enables beat detection functionality

(pitivi:8202): GStreamer-Video-CRITICAL **: 14:59:39.753: gst_video_frame_map_id: assertion 'info->width <= meta->width' failed

(pitivi:8202): GStreamer-CRITICAL **: 14:59:43.657: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 1465, in _child_added_cb
    self._add_child(ges_timeline_element)
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 1503, in _add_child
    widget = self._create_child_widget(ges_source)
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 1539, in _create_child_widget
    self.audio_widget = AudioUriSource(ges_source, self.timeline)
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 1105, in __init__
    TimelineElement.__init__(self, element, timeline)
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 664, in __init__
    self.previewer = self._get_previewer()
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 1109, in _get_previewer
    previewer = AudioPreviewer(self._ges_elem, self.timeline.app.settings.previewers_max_cpu)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1188, in __init__
    self.become_controlled()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 380, in become_controlled
    Previewer.manager.add_previewer(self)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 304, in add_previewer
    self._start_previewer(previewer)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 818, in __selected_changed_cb
    if not self.keyframe_curve and self.__controlled_property and \
AttributeError: 'AudioUriSource' object has no attribute 'keyframe_curve'
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 818, in __selected_changed_cb
    if not self.keyframe_curve and self.__controlled_property and \
AttributeError: 'AudioUriSource' object has no attribute 'keyframe_curve'

(pitivi:8202): GStreamer-CRITICAL **: 14:59:46.027: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 14:59:46.027: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:02.767: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:00:02.767: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:02.771: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:00:18.904: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:00:18.904: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:18.909: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:00:29.368: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:00:29.368: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:29.371: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:00:45.472: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:00:45.472: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:45.478: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:00:58.812: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:00:58.812: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:00:58.816: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:01:11.806: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:01:11.806: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:01:11.811: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:01:32.078: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:01:32.078: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): Gtk-CRITICAL **: 15:01:37.850: gtk_application_uninhibit: assertion 'cookie > 0' failed

(pitivi:8202): Gtk-CRITICAL **: 15:01:45.586: gtk_application_uninhibit: assertion 'cookie > 0' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:01:58.803: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:01:58.803: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:01.331: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:01.331: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:02.638: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:02.638: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:03.802: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:03.802: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:05.296: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:05.296: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): Gtk-CRITICAL **: 15:02:34.899: gtk_application_uninhibit: assertion 'cookie > 0' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:44.800: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:02:44.800: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:44.804: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): GStreamer-CRITICAL **: 15:02:50.911: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:02:50.911: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:03:08.333: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:03:08.333: gst_segment_do_seek: assertion 'start <= stop' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:03:18.229: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:03:18.229: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:03:28.908: gst_object_unref: assertion 'object != NULL' failed

(pitivi:8202): GES-CRITICAL **: 15:03:28.908: ges_layer_get_auto_transition: assertion 'GES_IS_LAYER (layer)' failed

(pitivi:8202): GStreamer-CRITICAL **: 15:03:28.913: The created element should be floating, this is probably caused by faulty bindings
Traceback (most recent call last):
  File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 2003, in _delete_selected_cb
    layer.remove_clip(clip)
  File "/usr/lib/python3.9/contextlib.py", line 126, in __exit__
    next(self.gen)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 340, in paused
    self.__start_next_previewer(track_type)
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 354, in __start_next_previewer
    self._start_previewer(self._previewers[track_type].pop())
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 311, in _start_previewer
    previewer.start_generation()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1360, in start_generation
    self._start_levels_discovery()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1208, in _start_levels_discovery
    self._launch_pipeline()
  File "/usr/lib64/pitivi/python/pitivi/timeline/previewers.py", line 1234, in _launch_pipeline
    clock = GObject.new(GObject.type_from_name("GstCpuThrottlingClock"))
  File "/usr/lib/python3.9/site-packages/gi/overrides/GObject.py", line 303, in type_from_name
    raise RuntimeError('unknown type name: %s' % name)
RuntimeError: unknown type name: GstCpuThrottlingClock

(pitivi:8202): Gtk-CRITICAL **: 15:03:38.820: gtk_application_uninhibit: assertion 'cookie > 0' failed
^C
anthony@ghost ~/Movies/RecordMyDesktopV2 $