Broken pipe error on Python 3.8.1 Windows

Writing eng subtitles to subtitles.srt...
00:00:00,583 (0.64) - 00:00:00,625 (5.73)
00:00:00,709 (0.33) - 00:00:00,750 (24.02)
00:00:01,376 (2.54) - 00:00:01,584 (5.09)
00:00:05,588 (4.73) - 00:00:07,257 (5.09) Traceback (most recent call last):
File "meltsub.py", line 263, in
extract_subs(f, softsub_video, hardsub_video, pos_diff_sec)
File "meltsub.py", line 228, in extract_subs
text = ocr(sub_frame)
File "meltsub.py", line 114, in ocr
p.stdin.write(buf)
BrokenPipeError: [Errno 32] Broken pipe