KSampler The size of tensor a (48) must match the size of tensor b (16) at non-singleton dimension 1
Custom Node Testing
- [x] I have tried disabling custom nodes and the issue persists (see how to disable custom nodes if you need help)
Expected Behavior
LOG 👍 2025-08-13T11:01:42.524341 - Prompt executed in 0.07 seconds 2025-08-13T11:01:42.861888 - Exception in callback _ProactorBasePipeTransport._call_connection_lost(None) handle: <Handle _ProactorBasePipeTransport._call_connection_lost(None)> Traceback (most recent call last): File "C:\pinokio\bin\miniconda\lib\asyncio\events.py", line 80, in _run self._context.run(self._callback, *self._args) File "C:\pinokio\bin\miniconda\lib\asyncio\proactor_events.py", line 165, in _call_connection_lost self._sock.shutdown(socket.SHUT_RDWR) ConnectionResetError: [WinError 10054] Une connexion existante a dû être fermée par l’hôte distant 2025-08-13T11:06:03.239183 - got prompt 2025-08-13T11:06:06.781652 - loaded completely 13554.172344970702 10835.4765625 True 2025-08-13T11:06:08.227621 - Restoring initial comfy attention2025-08-13T11:06:08.227621 - 2025-08-13T11:06:08.228620 - Restoring initial comfy attention2025-08-13T11:06:08.228620 - 2025-08-13T11:06:08.235611 - !!! Exception during processing !!! The size of tensor a (48) must match the size of tensor b (16) at non-singleton dimension 1 2025-08-13T11:06:08.236621 - Traceback (most recent call last): File "C:\pinokio\api\comfy.git\app\execution.py", line 496, in execute output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs) File "C:\pinokio\api\comfy.git\app\execution.py", line 315, in get_output_data return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs) File "C:\pinokio\api\comfy.git\app\execution.py", line 289, in _async_map_node_over_list await process_inputs(input_dict, i) File "C:\pinokio\api\comfy.git\app\execution.py", line 277, in process_inputs result = f(**inputs) File "C:\pinokio\api\comfy.git\app\nodes.py", line 1521, in sample return common_ksampler(model, seed, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, denoise=denoise) File "C:\pinokio\api\comfy.git\app\nodes.py", line 1488, in common_ksampler samples = comfy.sample.sample(model, noise, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, File "C:\pinokio\api\comfy.git\app\comfy\sample.py", line 45, in sample samples = sampler.sample(noise, positive, negative, cfg=cfg, latent_image=latent_image, start_step=start_step, last_step=last_step, force_full_denoise=force_full_denoise, denoise_mask=noise_mask, sigmas=sigmas, callback=callback, disable_pbar=disable_pbar, seed=seed) File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1143, in sample return sample(self.model, noise, positive, negative, cfg, self.device, sampler, sigmas, self.model_options, latent_image=latent_image, denoise_mask=denoise_mask, callback=callback, disable_pbar=disable_pbar, seed=seed) File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1033, in sample return cfg_guider.sample(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed) File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1018, in sample output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed) File "C:\pinokio\api\comfy.git\app\comfy\patcher_extension.py", line 111, in execute return self.original(*args, **kwargs) File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 986, in outer_sample output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed) File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 956, in inner_sample latent_image = self.inner_model.process_latent_in(latent_image) File "C:\pinokio\api\comfy.git\app\comfy\model_base.py", line 305, in process_latent_in return self.latent_format.process_in(latent) File "C:\pinokio\api\comfy.git\app\comfy\latent_formats.py", line 453, in process_in return (latent - latents_mean) * self.scale_factor / latents_std RuntimeError: The size of tensor a (48) must match the size of tensor b (16) at non-singleton dimension 1
2025-08-13T11:06:08.238612 - Prompt executed in 4.99 seconds
## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.
Workflow too large. Please manually upload the workflow from local file system.
## Additional Context
(Please add any additional context or steps to reproduce the error here)
### Actual Behavior
How to fix this problem, only with changes into the workflow (i have not enough known to use the soft solution)
### Steps to Reproduce
in the platform comfyui
### Debug Logs
```powershell
LOG 👍 2025-08-13T11:01:42.524341 - Prompt executed in 0.07 seconds
2025-08-13T11:01:42.861888 - Exception in callback _ProactorBasePipeTransport._call_connection_lost(None)
handle: <Handle _ProactorBasePipeTransport._call_connection_lost(None)>
Traceback (most recent call last):
File "C:\pinokio\bin\miniconda\lib\asyncio\events.py", line 80, in _run
self._context.run(self._callback, *self._args)
File "C:\pinokio\bin\miniconda\lib\asyncio\proactor_events.py", line 165, in _call_connection_lost
self._sock.shutdown(socket.SHUT_RDWR)
ConnectionResetError: [WinError 10054] Une connexion existante a dû être fermée par l’hôte distant
2025-08-13T11:06:03.239183 - got prompt
2025-08-13T11:06:06.781652 - loaded completely 13554.172344970702 10835.4765625 True
2025-08-13T11:06:08.227621 - Restoring initial comfy attention2025-08-13T11:06:08.227621 -
2025-08-13T11:06:08.228620 - Restoring initial comfy attention2025-08-13T11:06:08.228620 -
2025-08-13T11:06:08.235611 - !!! Exception during processing !!! The size of tensor a (48) must match the size of tensor b (16) at non-singleton dimension 1
2025-08-13T11:06:08.236621 - Traceback (most recent call last):
File "C:\pinokio\api\comfy.git\app\execution.py", line 496, in execute
output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
File "C:\pinokio\api\comfy.git\app\execution.py", line 315, in get_output_data
return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, hidden_inputs=hidden_inputs)
File "C:\pinokio\api\comfy.git\app\execution.py", line 289, in _async_map_node_over_list
await process_inputs(input_dict, i)
File "C:\pinokio\api\comfy.git\app\execution.py", line 277, in process_inputs
result = f(**inputs)
File "C:\pinokio\api\comfy.git\app\nodes.py", line 1521, in sample
return common_ksampler(model, seed, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, denoise=denoise)
File "C:\pinokio\api\comfy.git\app\nodes.py", line 1488, in common_ksampler
samples = comfy.sample.sample(model, noise, steps, cfg, sampler_name, scheduler, positive, negative, latent_image,
File "C:\pinokio\api\comfy.git\app\comfy\sample.py", line 45, in sample
samples = sampler.sample(noise, positive, negative, cfg=cfg, latent_image=latent_image, start_step=start_step, last_step=last_step, force_full_denoise=force_full_denoise, denoise_mask=noise_mask, sigmas=sigmas, callback=callback, disable_pbar=disable_pbar, seed=seed)
File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1143, in sample
return sample(self.model, noise, positive, negative, cfg, self.device, sampler, sigmas, self.model_options, latent_image=latent_image, denoise_mask=denoise_mask, callback=callback, disable_pbar=disable_pbar, seed=seed)
File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1033, in sample
return cfg_guider.sample(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed)
File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 1018, in sample
output = executor.execute(noise, latent_image, sampler, sigmas, denoise_mask, callback, disable_pbar, seed)
File "C:\pinokio\api\comfy.git\app\comfy\patcher_extension.py", line 111, in execute
return self.original(*args, **kwargs)
File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 986, in outer_sample
output = self.inner_sample(noise, latent_image, device, sampler, sigmas, denoise_mask, callback, disable_pbar, seed)
File "C:\pinokio\api\comfy.git\app\comfy\samplers.py", line 956, in inner_sample
latent_image = self.inner_model.process_latent_in(latent_image)
File "C:\pinokio\api\comfy.git\app\comfy\model_base.py", line 305, in process_latent_in
return self.latent_format.process_in(latent)
File "C:\pinokio\api\comfy.git\app\comfy\latent_formats.py", line 453, in process_in
return (latent - latents_mean) * self.scale_factor / latents_std
RuntimeError: The size of tensor a (48) must match the size of tensor b (16) at non-singleton dimension 1
2025-08-13T11:06:08.238612 - Prompt executed in 4.99 seconds
## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.
Workflow too large. Please manually upload the workflow from local file system.
## Additional Context
(Please add any additional context or steps to reproduce the error here)
Other
No response