3d_hunyam3d-v2.1 workflow and others 3d workflows - Cannot execute because a node is missing the class_type property.: Node ID '#1'

[vasyliylyapkin-cmd]

Custom Node Testing

• I have tried disabling custom nodes and the issue persists (see how to disable custom nodes if you need help)

Expected Behavior

i want start workflow 3d_hunyan3d-v2.1 from templates ComfyUi and generate 3d model from photo

Actual Behavior

3d_hunyam3d-v2.1 workflow and others 3d workflows cant start after update to new version ComfyUi

Steps to Reproduce

3d_hunyuan3d-v2.1.json

Debug Logs

# ComfyUI Error Report
## Error Details
- **Node ID:** N/A
- **Node Type:** N/A
- **Exception Type:** Ошибка выполнения запроса
- **Exception Message:** Cannot execute because a node is missing the class_type property.: Node ID '#1'
## Stack Trace

Error: Prompt execution failed
    at ComfyApi.queuePrompt (http://127.0.0.1:8188/assets/index-BKeTeXLp.js:102005:13)
    at async PromptService.api.queuePrompt (http://127.0.0.1:8188/rgthree/common/prompt_service.js:88:28)
    at async ComfyApp.queuePrompt (http://127.0.0.1:8188/assets/index-BKeTeXLp.js:328120:25)
    at async app.queuePrompt (http://127.0.0.1:8188/extensions/rgthree-comfy/rgthree.js:477:24)
    at async function (http://127.0.0.1:8188/assets/GraphView-CIE4Y1aC.js:67479:9)
    at async http://127.0.0.1:8188/assets/index-BKeTeXLp.js:250143:14
    at async Proxy.execute (http://127.0.0.1:8188/assets/index-BKeTeXLp.js:250496:7)
    at async queuePrompt (http://127.0.0.1:8188/assets/GraphView-CIE4Y1aC.js:64566:7)

## System Information
- **ComfyUI Version:** 0.3.65
- **Arguments:** C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\main.py --preview-method auto --use-pytorch-cross-attention
- **OS:** nt
- **Python Version:** 3.12.10 (main, May 30 2025, 05:39:07) [MSC v.1943 64 bit (AMD64)]
- **Embedded Python:** false
- **PyTorch Version:** 2.9.0+cu129
## Devices

- **Name:** cuda:0 NVIDIA GeForce RTX 3060 : cudaMallocAsync
  - **Type:** cuda
  - **VRAM Total:** 12884246528
  - **VRAM Free:** 11791237120
  - **Torch VRAM Total:** 0
  - **Torch VRAM Free:** 0

## Logs

2025-10-17T21:52:55.112715 - Adding extra search path checkpoints C:\Users\Maxim\Downloads\Data\Models\StableDiffusion
2025-10-17T21:52:55.112832 - Adding extra search path diffusers C:\Users\Maxim\Downloads\Data\Models\Diffusers
2025-10-17T21:52:55.112832 - Adding extra search path loras C:\Users\Maxim\Downloads\Data\Models\Lora
2025-10-17T21:52:55.112832 - Adding extra search path loras C:\Users\Maxim\Downloads\Data\Models\LyCORIS
2025-10-17T21:52:55.112832 - Adding extra search path clip C:\Users\Maxim\Downloads\Data\Models\TextEncoders
2025-10-17T21:52:55.112832 - Adding extra search path clip_vision C:\Users\Maxim\Downloads\Data\Models\ClipVision
2025-10-17T21:52:55.112832 - Adding extra search path embeddings C:\Users\Maxim\Downloads\Data\Models\Embeddings
2025-10-17T21:52:55.112832 - Adding extra search path vae C:\Users\Maxim\Downloads\Data\Models\VAE
2025-10-17T21:52:55.112832 - Adding extra search path vae_approx C:\Users\Maxim\Downloads\Data\Models\ApproxVAE
2025-10-17T21:52:55.112832 - Adding extra search path controlnet C:\Users\Maxim\Downloads\Data\Models\ControlNet
2025-10-17T21:52:55.112832 - Adding extra search path controlnet C:\Users\Maxim\Downloads\Data\Models\T2IAdapter
2025-10-17T21:52:55.112832 - Adding extra search path gligen C:\Users\Maxim\Downloads\Data\Models\GLIGEN
2025-10-17T21:52:55.112832 - Adding extra search path upscale_models C:\Users\Maxim\Downloads\Data\Models\ESRGAN
2025-10-17T21:52:55.112832 - Adding extra search path upscale_models C:\Users\Maxim\Downloads\Data\Models\RealESRGAN
2025-10-17T21:52:55.112832 - Adding extra search path upscale_models C:\Users\Maxim\Downloads\Data\Models\SwinIR
2025-10-17T21:52:55.113835 - Adding extra search path hypernetworks C:\Users\Maxim\Downloads\Data\Models\Hypernetwork
2025-10-17T21:52:55.113835 - Adding extra search path ipadapter C:\Users\Maxim\Downloads\Data\Models\IpAdapter
2025-10-17T21:52:55.113835 - Adding extra search path ipadapter C:\Users\Maxim\Downloads\Data\Models\IpAdapters15
2025-10-17T21:52:55.113835 - Adding extra search path ipadapter C:\Users\Maxim\Downloads\Data\Models\IpAdaptersXl
2025-10-17T21:52:55.113835 - Adding extra search path prompt_expansion C:\Users\Maxim\Downloads\Data\Models\PromptExpansion
2025-10-17T21:52:55.113835 - Adding extra search path ultralytics C:\Users\Maxim\Downloads\Data\Models\Ultralytics
2025-10-17T21:52:55.113835 - Adding extra search path ultralytics_bbox C:\Users\Maxim\Downloads\Data\Models\Ultralytics\bbox
2025-10-17T21:52:55.113835 - Adding extra search path ultralytics_segm C:\Users\Maxim\Downloads\Data\Models\Ultralytics\segm
2025-10-17T21:52:55.113835 - Adding extra search path sams C:\Users\Maxim\Downloads\Data\Models\Sams
2025-10-17T21:52:55.113835 - Adding extra search path diffusion_models C:\Users\Maxim\Downloads\Data\Models\DiffusionModels
2025-10-17T21:52:55.635743 - [START] Security scan2025-10-17T21:52:55.636742 - 
2025-10-17T21:52:57.440704 - [DONE] Security scan2025-10-17T21:52:57.440704 - 
2025-10-17T21:52:57.610070 - ## ComfyUI-Manager: installing dependencies done.2025-10-17T21:52:57.611070 - 
2025-10-17T21:52:57.611070 - ** ComfyUI startup time:2025-10-17T21:52:57.611070 -  2025-10-17T21:52:57.611070 - 2025-10-17 21:52:57.6112025-10-17T21:52:57.611070 - 
2025-10-17T21:52:57.611070 - ** Platform:2025-10-17T21:52:57.611070 -  2025-10-17T21:52:57.611070 - Windows2025-10-17T21:52:57.611070 - 
2025-10-17T21:52:57.611070 - ** Python version:2025-10-17T21:52:57.611070 -  2025-10-17T21:52:57.611070 - 3.12.10 (main, May 30 2025, 05:39:07) [MSC v.1943 64 bit (AMD64)]2025-10-17T21:52:57.611070 - 
2025-10-17T21:52:57.611070 - ** Python executable:2025-10-17T21:52:57.611070 -  2025-10-17T21:52:57.611070 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Scripts\python.exe2025-10-17T21:52:57.611070 - 
2025-10-17T21:52:57.611070 - ** ComfyUI Path:2025-10-17T21:52:57.612070 -  2025-10-17T21:52:57.612070 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI2025-10-17T21:52:57.612070 - 
2025-10-17T21:52:57.612070 - ** ComfyUI Base Folder Path:2025-10-17T21:52:57.612070 -  2025-10-17T21:52:57.612070 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI2025-10-17T21:52:57.612070 - 
2025-10-17T21:52:57.612070 - ** User directory:2025-10-17T21:52:57.612553 -  2025-10-17T21:52:57.612624 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\user2025-10-17T21:52:57.612624 - 
2025-10-17T21:52:57.612897 - ** ComfyUI-Manager config path:2025-10-17T21:52:57.612897 -  2025-10-17T21:52:57.612897 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\user\default\ComfyUI-Manager\config.ini2025-10-17T21:52:57.612897 - 
2025-10-17T21:52:57.612897 - ** Log path:2025-10-17T21:52:57.612897 -  2025-10-17T21:52:57.612897 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\user\comfyui.log2025-10-17T21:52:57.612897 - 
2025-10-17T21:52:59.470978 - 
Prestartup times for custom nodes:
2025-10-17T21:52:59.470978 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\rgthree-comfy
2025-10-17T21:52:59.471975 -    4.4 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI-Manager
2025-10-17T21:52:59.471975 - 
2025-10-17T21:53:00.207815 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torch\cuda\__init__.py:63: FutureWarning: The pynvml package is deprecated. Please install nvidia-ml-py instead. If you did not install pynvml directly, please report this to the maintainers of the package that installed pynvml for you.
  import pynvml  # type: ignore[import]
2025-10-17T21:53:01.786990 - Checkpoint files will always be loaded safely.
2025-10-17T21:53:01.957276 - Total VRAM 12287 MB, total RAM 32711 MB
2025-10-17T21:53:01.957276 - pytorch version: 2.9.0+cu129
2025-10-17T21:53:01.958281 - Set vram state to: NORMAL_VRAM
2025-10-17T21:53:01.959281 - Device: cuda:0 NVIDIA GeForce RTX 3060 : cudaMallocAsync
2025-10-17T21:53:02.053574 - Using pytorch attention
2025-10-17T21:53:06.380554 - Python version: 3.12.10 (main, May 30 2025, 05:39:07) [MSC v.1943 64 bit (AMD64)]
2025-10-17T21:53:06.380554 - ComfyUI version: 0.3.65
2025-10-17T21:53:06.417534 - ComfyUI frontend version: 1.27.10
2025-10-17T21:53:06.419532 - [Prompt Server] web root: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\comfyui_frontend_package\static
2025-10-17T21:53:06.691400 - Traceback (most recent call last):
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\nodes.py", line 2131, in load_custom_node
    module_spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 999, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\comfy_extras\nodes_upscale_model.py", line 2, in <module>
    from spandrel import ModelLoader, ImageModelDescriptor
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\spandrel\__init__.py", line 8, in <module>
    from .__helpers.loader import ModelLoader
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\spandrel\__helpers\loader.py", line 10, in <module>
    from .main_registry import MAIN_REGISTRY
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\spandrel\__helpers\main_registry.py", line 3, in <module>
    from ..architectures import (
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\spandrel\architectures\LaMa\__init__.py", line 11, in <module>
    from .__arch.LaMa import LaMa
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\spandrel\architectures\LaMa\__arch\LaMa.py", line 13, in <module>
    from torchvision.transforms.functional import InterpolationMode, rotate
ImportError: cannot import name 'InterpolationMode' from 'torchvision.transforms.functional' (C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torchvision\transforms\functional.py)

2025-10-17T21:53:06.691400 - Cannot import C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\comfy_extras\nodes_upscale_model.py module for custom nodes: cannot import name 'InterpolationMode' from 'torchvision.transforms.functional' (C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torchvision\transforms\functional.py)
2025-10-17T21:53:08.003429 - [Crystools �[0;32mINFO�[0m] Crystools version: 1.27.3
2025-10-17T21:53:08.040747 - [Crystools �[0;32mINFO�[0m] Platform release: 10
2025-10-17T21:53:08.040747 - [Crystools �[0;32mINFO�[0m] JETSON: Not detected.
2025-10-17T21:53:08.042737 - [Crystools �[0;32mINFO�[0m] CPU: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz - Arch: AMD64 - OS: Windows 10
2025-10-17T21:53:08.054545 - [Crystools �[0;32mINFO�[0m] pynvml (NVIDIA) initialized.
2025-10-17T21:53:08.054545 - [Crystools �[0;32mINFO�[0m] GPU/s:
2025-10-17T21:53:08.064283 - [Crystools �[0;32mINFO�[0m] 0) NVIDIA GeForce RTX 3060
2025-10-17T21:53:08.064283 - [Crystools �[0;32mINFO�[0m] NVIDIA Driver: 581.08
2025-10-17T21:53:08.109496 - ComfyUI-GGUF: Allowing full torch compile
2025-10-17T21:53:08.122069 - Traceback (most recent call last):
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\nodes.py", line 2131, in load_custom_node
    module_spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 999, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-kjnodes\__init__.py", line 3, in <module>
    from .nodes.batchcrop_nodes import *
  File "C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-kjnodes\nodes\batchcrop_nodes.py", line 5, in <module>
    from torchvision.transforms import Resize, CenterCrop, InterpolationMode
ImportError: cannot import name 'InterpolationMode' from 'torchvision.transforms' (C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torchvision\transforms\__init__.py)

2025-10-17T21:53:08.122069 - Cannot import C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-kjnodes module for custom nodes: cannot import name 'InterpolationMode' from 'torchvision.transforms' (C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torchvision\transforms\__init__.py)
2025-10-17T21:53:08.133827 - ### Loading: ComfyUI-Manager (V3.37)
2025-10-17T21:53:08.133827 - [ComfyUI-Manager] network_mode: public
2025-10-17T21:53:08.133827 - [ComfyUI-Manager] Since --preview-method is set, ComfyUI-Manager's preview method feature will be ignored.
2025-10-17T21:53:08.288771 - ### ComfyUI Revision: 4084 [51696e3f] *DETACHED | Released on '2025-10-13'
2025-10-17T21:53:08.863069 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/alter-list.json
2025-10-17T21:53:09.105442 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/extension-node-map.json
2025-10-17T21:53:09.123121 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/model-list.json
2025-10-17T21:53:09.198415 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/custom-node-list.json
2025-10-17T21:53:09.519085 - [ComfyUI-Manager] default cache updated: https://raw.githubusercontent.com/ltdrdata/ComfyUI-Manager/main/github-stats.json
2025-10-17T21:53:10.220210 - Warning: Could not load sageattention: No module named 'sageattention'
2025-10-17T21:53:10.220210 - sageattention package is not installed, sageattention will not be available
2025-10-17T21:53:10.646690 - Qwen nodes not available due to error in importing them: cannot import name 'InterpolationMode' from 'torchvision.transforms' (C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\venv\Lib\site-packages\torchvision\transforms\__init__.py)2025-10-17T21:53:10.646690 - 
2025-10-17T21:53:10.654688 - FantasyPortrait nodes not available due to error in importing them: No module named 'onnx'2025-10-17T21:53:10.654688 - 
2025-10-17T21:53:10.678159 - [C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux] | INFO -> Using ckpts path: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux\ckpts2025-10-17T21:53:10.678159 - 
2025-10-17T21:53:10.679772 - [C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux] | INFO -> Using symlinks: False2025-10-17T21:53:10.679772 - 
2025-10-17T21:53:10.680788 - [C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux] | INFO -> Using ort providers: ['CUDAExecutionProvider', 'DirectMLExecutionProvider', 'OpenVINOExecutionProvider', 'ROCMExecutionProvider', 'CPUExecutionProvider', 'CoreMLExecutionProvider']2025-10-17T21:53:10.681782 - 
2025-10-17T21:53:11.133991 - C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux\node_wrappers\dwpose.py:26: UserWarning: DWPose: Onnxruntime not found or doesn't come with acceleration providers, switch to OpenCV with CPU device. DWPose might run very slowly
  warnings.warn("DWPose: Onnxruntime not found or doesn't come with acceleration providers, switch to OpenCV with CPU device. DWPose might run very slowly")
2025-10-17T21:53:11.191852 - 
2025-10-17T21:53:11.191852 - [rgthree-comfy] Loaded 48 extraordinary nodes. 🎉2025-10-17T21:53:11.191852 - 
2025-10-17T21:53:11.191852 - 
2025-10-17T21:53:11.194840 - 
Import times for custom nodes:
2025-10-17T21:53:11.194840 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\websocket_image_save.py
2025-10-17T21:53:11.194840 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI_API_Manager
2025-10-17T21:53:11.194840 -    0.0 seconds (IMPORT FAILED): C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-kjnodes
2025-10-17T21:53:11.195840 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-custom-scripts
2025-10-17T21:53:11.196137 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI-GGUF
2025-10-17T21:53:11.196213 -    0.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\rgthree-comfy
2025-10-17T21:53:11.196449 -    0.1 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI-Crystools
2025-10-17T21:53:11.196481 -    0.1 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui-videohelpersuite
2025-10-17T21:53:11.196481 -    0.5 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI-Manager
2025-10-17T21:53:11.196481 -    0.5 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\comfyui_controlnet_aux
2025-10-17T21:53:11.196481 -    2.0 seconds: C:\Users\Maxim\Downloads\Data\Packages\ComfyUI\custom_nodes\ComfyUI-WanVideoWrapper
2025-10-17T21:53:11.196481 - 
2025-10-17T21:53:11.196481 - WARNING: some comfy_extras/ nodes did not import correctly. This may be because they are missing some dependencies.

2025-10-17T21:53:11.196481 - IMPORT FAILED: nodes_upscale_model.py
2025-10-17T21:53:11.196481 - 
This issue might be caused by new missing dependencies added the last time you updated ComfyUI.
2025-10-17T21:53:11.197488 - Please do a: pip install -r requirements.txt
2025-10-17T21:53:11.197488 - 
2025-10-17T21:53:11.804479 - Context impl SQLiteImpl.
2025-10-17T21:53:11.804479 - Will assume non-transactional DDL.
2025-10-17T21:53:11.805479 - No target revision found.
2025-10-17T21:53:11.836015 - Starting server

2025-10-17T21:53:11.837001 - To see the GUI go to: http://127.0.0.1:8188
2025-10-17T21:53:14.106497 - FETCH ComfyRegistry Data: 5/1002025-10-17T21:53:14.106497 - 
2025-10-17T21:53:18.976601 - FETCH ComfyRegistry Data: 10/1002025-10-17T21:53:18.976601 - 
2025-10-17T21:53:24.086984 - FETCH ComfyRegistry Data: 15/1002025-10-17T21:53:24.087985 - 
2025-10-17T21:53:28.931672 - FETCH ComfyRegistry Data: 20/1002025-10-17T21:53:28.932671 - 
2025-10-17T21:53:33.433913 - FETCH ComfyRegistry Data: 25/1002025-10-17T21:53:33.434888 - 
2025-10-17T21:53:37.704592 - FETCH ComfyRegistry Data: 30/1002025-10-17T21:53:37.704592 - 
2025-10-17T21:53:42.151087 - FETCH ComfyRegistry Data: 35/1002025-10-17T21:53:42.151087 - 
2025-10-17T21:53:47.016797 - FETCH ComfyRegistry Data: 40/1002025-10-17T21:53:47.017798 - 
2025-10-17T21:53:51.397946 - FETCH ComfyRegistry Data: 45/1002025-10-17T21:53:51.397946 - 
2025-10-17T21:53:55.696267 - FETCH ComfyRegistry Data: 50/1002025-10-17T21:53:55.697244 - 
2025-10-17T21:53:59.996488 - FETCH ComfyRegistry Data: 55/1002025-10-17T21:53:59.996488 - 
2025-10-17T21:54:04.438366 - FETCH ComfyRegistry Data: 60/1002025-10-17T21:54:04.439365 - 
2025-10-17T21:54:08.898254 - FETCH ComfyRegistry Data: 65/1002025-10-17T21:54:08.898254 - 
2025-10-17T21:54:13.383680 - FETCH ComfyRegistry Data: 70/1002025-10-17T21:54:13.383680 - 
2025-10-17T21:54:20.781229 - FETCH ComfyRegistry Data: 75/1002025-10-17T21:54:20.781229 - 
2025-10-17T21:54:23.128274 - got prompt
2025-10-17T21:54:23.128274 - invalid prompt: {'type': 'invalid_prompt', 'message': 'Cannot execute because a node is missing the class_type property.', 'details': "Node ID '#1'", 'extra_info': {}}


## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.

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## Additional Context
(Please add any additional context or steps to reproduce the error here)

Other

No response

[zoldaten]

@vasyliylyapkin-cmd https://github.com/visualbruno/ComfyUI-Hunyuan3d-2-1

[christian-byrne]

This issue has been addressed with improved error messaging in frontend v1.39.5 (backend: #12177, frontend: Comfy-Org/ComfyUI_frontend#8511).

The cryptic "Cannot execute because a node is missing the class_type property" error now shows:

• The actual node type (e.g., KSampler, LoadImage) that is missing
• The node's custom title if you renamed it in the workflow
• A hint to install missing custom nodes via ComfyUI Manager

To get the fix: Update frontend to v1.39.5+ or use --front-end-version Comfy-Org/ComfyUI_frontend@1.39.5. ComfyUI Desktop users will receive this in the next stable release (~mid-February 2026).

If the node source shows "Unknown": This happens when the Manager is not installed or the node is not in the registry. You can enable the built-in Manager with --enable-manager, use the legacy Manager UI with --enable-manager --enable-manager-legacy-ui, or install ComfyUI-Manager as a custom node. The node ID in the error message can still help you locate it in the workflow.

Feel free to reopen this issue if the problem persists after updating. Please include your ComfyUI version, frontend version (visible in bottom-right corner), and a screenshot of the error dialog.

For general guidance see https://docs.comfy.org, or contact support@comfy.org for additional help.