error av1 QSVEncC

[danycat201489-a11y]

Post-encode: ffprobe failed on C:\Users*****\Documents\00004-fastflix-5e35.mkv
Traceback (most recent call last):
File "fastflix\widgets\main.py", line 2803, in _post_encode_process
probe_data = probe(self.app, output_path)
File "fastflix\flix.py", line 220, in probe
raise FlixError(f"Error code returned running FFprobe: {result.stdout} - {result.stderr}")
fastflix.exceptions.FlixError: Error code returned running FFprobe: {

}