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Failure to load workflow - "TypeError: this.widgets.values(...).filter is not a function" #7174

@comfy-pr-bot

Description

@comfy-pr-bot

Custom Node Testing

Expected Behavior

Successful workflow load

Actual Behavior

Workflow does not load and error message displays. This is consistent regardless of workflow.

Steps to Reproduce

Attempt to open a workflow.

Debug Logs

# ComfyUI Error Report
## Error Details
- **Node ID:** N/A
- **Node Type:** N/A
- **Exception Type:** Loading aborted due to error reloading workflow data
- **Exception Message:** TypeError: this.widgets.values(...).filter is not a function
## Stack Trace

TypeError: this.widgets.values(...).filter is not a function
    at Pe.configure (http://127.0.0.1:8188/assets/index-CmHWQU2p.js:58:13098)
    at Pe.configure (http://127.0.0.1:8188/assets/index-CmHWQU2p.js:247:11319)
    at LGraph.configure (http://127.0.0.1:8188/assets/index-CmHWQU2p.js:58:227262)
    at LGraph.configure (http://127.0.0.1:8188/assets/index-CmHWQU2p.js:249:8254)
    at ComfyApp.loadGraphData (http://127.0.0.1:8188/assets/index-CmHWQU2p.js:249:14981)
    at async loadWorkflowFromStorage (http://127.0.0.1:8188/assets/GraphView-LvgAtOA9.js:13:11026)
    at async loadPreviousWorkflowFromStorage (http://127.0.0.1:8188/assets/GraphView-LvgAtOA9.js:13:11302)
    at async Object.initializeWorkflow (http://127.0.0.1:8188/assets/GraphView-LvgAtOA9.js:13:11594)
    at async http://127.0.0.1:8188/assets/GraphView-LvgAtOA9.js:13:44306

## System Information
- **ComfyUI Version:** 0.3.76
- **Arguments:** /home/admin/Software/ComfyUI/main.py --lowvram --disable-cuda-malloc --cuda-device=0 --disable-smart-memory
- **OS:** linux
- **Python Version:** 3.12.3 (main, Nov  6 2025, 13:44:16) [GCC 13.3.0]
- **Embedded Python:** false
- **PyTorch Version:** 2.9.1+cu128
## Devices

- **Name:** cuda:0 NVIDIA GeForce RTX 3090 : native
  - **Type:** cuda
  - **VRAM Total:** 25296044032
  - **VRAM Free:** 25017057280
  - **Torch VRAM Total:** 0
  - **Torch VRAM Free:** 0

## Logs

2025-12-04T11:44:17.252136 - Set cuda device to: 0
2025-12-04T11:44:18.454842 - Checkpoint files will always be loaded safely.
2025-12-04T11:44:18.681006 - Total VRAM 24124 MB, total RAM 96236 MB
2025-12-04T11:44:18.681055 - pytorch version: 2.9.1+cu128
2025-12-04T11:44:18.681306 - Set vram state to: LOW_VRAM
2025-12-04T11:44:18.681336 - Disabling smart memory management
2025-12-04T11:44:18.681561 - Device: cuda:0 NVIDIA GeForce RTX 3090 : native
2025-12-04T11:44:18.681665 - Using async weight offloading with 2 streams
2025-12-04T11:44:18.681796 - Enabled pinned memory 91424.0
2025-12-04T11:44:18.691098 - working around nvidia conv3d memory bug.
2025-12-04T11:44:19.510181 - Using pytorch attention
2025-12-04T11:44:20.950384 - Python version: 3.12.3 (main, Nov  6 2025, 13:44:16) [GCC 13.3.0]
2025-12-04T11:44:20.950433 - ComfyUI version: 0.3.76
2025-12-04T11:44:20.953483 - ComfyUI frontend version: 1.33.10
2025-12-04T11:44:20.954062 - [Prompt Server] web root: /home/admin/Software/ComfyUI/venv/lib/python3.12/site-packages/comfyui_frontend_package/static
2025-12-04T11:44:21.457354 - Total VRAM 24124 MB, total RAM 96236 MB
2025-12-04T11:44:21.457403 - pytorch version: 2.9.1+cu128
2025-12-04T11:44:21.457581 - Set vram state to: LOW_VRAM
2025-12-04T11:44:21.457620 - Disabling smart memory management
2025-12-04T11:44:21.457701 - Device: cuda:0 NVIDIA GeForce RTX 3090 : native
2025-12-04T11:44:21.457779 - Using async weight offloading with 2 streams
2025-12-04T11:44:21.457889 - Enabled pinned memory 91424.0
2025-12-04T11:44:22.321136 - Context impl SQLiteImpl.
2025-12-04T11:44:22.321189 - Will assume non-transactional DDL.
2025-12-04T11:44:22.321876 - No target revision found.
2025-12-04T11:44:22.344047 - Starting server

2025-12-04T11:44:22.344269 - To see the GUI go to: http://127.0.0.1:8188


## 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


This issue is transferred from: comfyanonymous/ComfyUI#11109

Original issue was created by @bettinaSim at 2025-12-04T16:46:26.000Z

Original Comments:

@MKupi:

Same here. I've installed ComfyUI in pinokio. After updating ComfyUI to version 0.3.76 I get the "TypeError: this.widgets.values(...).filter is not a function" error and no template can be loaded.
I even removed ComfyUI from pinokio and did a fresh install, same error.

@manalokos:

I'm also getting this error, disabled all plugins, installed again, same error

@f4ku123:

> Same here. I've installed ComfyUI in pinokio. After updating ComfyUI to version 0.3.76 I get the "TypeError: this.widgets.values(...).filter is not a function" error and no template can be loaded. I even removed ComfyUI from pinokio and did a fresh install, same error.

I did the same and i'm still getting the same error.

┆Issue is synchronized with this Notion page by Unito

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