UnicodeDecodeError: 'utf-8' codec can't decode byte 0xcc in position 2273: invalid continuation byte

[tiandaoyuxi]

Error handling request
Traceback (most recent call last):
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_protocol.py", line 479, in _handle_request
resp = await request_handler(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_app.py", line 569, in _handle
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_middlewares.py", line 117, in impl
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 62, in cache_control
response: web.Response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 140, in origin_only_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 74, in cors_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 187, in websocket_handler
await ws.prepare(request)
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_ws.py", line 211, in prepare
payload_writer = await super().prepare(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_response.py", line 453, in prepare
return await self._start(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_response.py", line 461, in _start
await self._write_headers()
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_response.py", line 538, in _write_headers
await writer.write_headers(status_line, self._headers)
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\http_writer.py", line 148, in write_headers
self._write(buf)
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\http_writer.py", line 81, in _write
raise ClientConnectionResetError("Cannot write to closing transport")
aiohttp.client_exceptions.ClientConnectionResetError: Cannot write to closing transport
Error handling request
Traceback (most recent call last):
File "D:\Comfy_UI\ComfyUI\custom_nodes\ComfyUI-VideoHelperSuite\videohelpersuite\server.py", line 79, in view_video
res = subprocess.run([ffmpeg_path] + in_args + ['-t', '0', '-f', 'null', '-'],
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "subprocess.py", line 571, in run
subprocess.CalledProcessError: Command '['D:\ffmpeg\bin\ffmpeg.EXE', '-safe', '0', '-i', 'D:\Comfy_UI\ComfyUI\temp\image_sequence_preview.txt', '-t', '0', '-f', 'null', '-']' returned non-zero exit status 4294967274.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_protocol.py", line 479, in _handle_request
resp = await request_handler(request)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_app.py", line 569, in _handle
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\python_embeded\Lib\site-packages\aiohttp\web_middlewares.py", line 117, in impl
return await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 62, in cache_control
response: web.Response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 140, in origin_only_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\server.py", line 74, in cors_middleware
response = await handler(request)
^^^^^^^^^^^^^^^^^^^^^^
File "D:\Comfy_UI\ComfyUI\custom_nodes\ComfyUI-VideoHelperSuite\videohelpersuite\server.py", line 89, in view_video
+ e.stderr.decode("utf-8"))
^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xcc in position 2273: invalid continuation byte

[AustinMroz]

Looks like there's two errors here, something wrong with previewing an image sequence, and an incorrect encoding when displaying the error message. I've pushed a fix to ensure the error message will display properly, but this will result in a new error message describing the actual issue.