E: 19:57:05 Traceback (most recent call last):
File "./picard/util/thread.py", line 46, in run
result = self.func()
File "./picard/file.py", line 240, in _save_and_rename
self._save_images(os.path.dirname(new_filename), metadata)
File "./picard/file.py", line 406, in _save_images
image.save(dirname, metadata, counters)
File "./picard/coverart/image.py", line 296, in save
while os.path.exists(image_filename + ext) and not overwrite:
TypeError: can't concat bytes to str