TypeError: unsupported operand type(s) for *: 'NoneType' and 'float'

[QiYueColdRain]

Choose one GPU idx.

[CPU] : CPU
[0] : Tesla P40
[1] : Tesla P40
[2] : Tesla P40
[3] : Tesla P40
[4] : Tesla P40
[5] : Tesla P40
[6] : Tesla P40

[2] Which GPU index to choose? : 2

[wf] Face type ( f/wf/head ?:help ) :
wf
[0] Max number of faces from image ( ?:help ) :
0
[512] Image size ( 256-2048 ?:help ) :
512
[90] Jpeg quality ( 1-100 ?:help ) :
90
[n] Write debug images to aligned_debug? ( y/n ) :
n
Performing manual extract...
Running on Tesla P40
0%| | 0/655 [00:00<?, ?it/s]Traceback (most recent call last):
File "/usr/local/deepfacelab/main.py", line 345, in
arguments.func(arguments)
File "/usr/local/deepfacelab/main.py", line 33, in process_extract
Extractor.main( detector = arguments.detector,
File "/usr/local/deepfacelab/mainscripts/Extractor.py", line 812, in main
data = ExtractSubprocessor ([ ExtractSubprocessor.Data(Path(filename)) for filename in input_image_paths ], 'landmarks-manual', image_size, jpeg_quality, face_type, output_debug_path if output_debug else None, manual_window_size=manual_window_size, device_config=device_config).run()
File "/usr/local/deepfacelab/core/joblib/SubprocessorBase.py", line 224, in run
self.on_result (cli.host_dict, obj['data'], obj['result'])
File "/usr/local/deepfacelab/mainscripts/Extractor.py", line 638, in on_result
self.redraw()
File "/usr/local/deepfacelab/mainscripts/Extractor.py", line 605, in redraw
view_landmarks = (np.array(self.landmarks) * self.view_scale).astype(np.int).tolist()
TypeError: unsupported operand type(s) for *: 'NoneType' and 'float'