Efficient Nodes disables the RUN button after reloading the workflow (ComfyUI 0.3.71)

[nnynevek]

📝 Full Issue Description

Hello,
I’m experiencing a consistent issue with Efficient Nodes in ComfyUI.

Everything works perfectly while I am inside the workflow.
But as soon as I leave the workflow folder and come back, or reload the workflow, ComfyUI disables the RUN button — even though no error is visible in the graph.

🔍 Exact Behavior (Step-by-step)

Open ComfyUI

Load a workflow that uses Efficient Nodes

Everything runs normally

Click “Open” and navigate to another folder

Come back to the workflow

The workflow loads without errors

The RUN button is disabled, even though:

No error message appears in the UI

No node is highlighted in red

The console says a node should be “highlighted in red”,
but nothing is actually highlighted.

So:

Efficient Nodes work normally

The problem only happens after reloading the workflow

📁 Nodes I tested

I tested the following:

efficiency-nodes-comfyui (official jags111 repository)

several updated forks

installation via ComfyUI-Manager

All show the exact same behavior.

🔧 Technical Information

OS: Windows 11

GPU: NVIDIA GeForce RTX 5060

VRAM: 8 GB

RAM: 16 GB

Python: 3.12.8

ComfyUI: 0.3.71

Frontend: 1.33.3

PyTorch: 2.10.0.dev20251120+cu128

Using portable ComfyUI for Windows (standalone build)

📄 Relevant Logs

Only deprecation warnings appear, for example:

[DEPRECATION WARNING] Detected import of deprecated legacy API: /scripts/ui.js
This is likely caused by a custom node extension using outdated APIs.

No actual error pointing to a specific node.

🎯 Expected Behavior

Workflow should reload normally

If a node is broken, it should be highlighted in red

The RUN button should not silently disable itself

🧪 What I’ve already tried

Reinstalled Efficient Nodes

Manually removed the node folder

Uninstalled ComfyUI-Manager

Cleared cache and rebuilt nodes

Reinstalled ComfyUI Portable

Tested different workflows

Tested multiple forks of Efficient Nodes

Verified RUN button works normally when Efficient Nodes is not installed

📌 Very Important Detail

The node WanVidWrapper works correctly
— even after reloading the workflow.

This suggests the issue is specific to Efficient Nodes and how it loads on startup.

❓ Question

Is there an updated or fully compatible version of Efficient Nodes for ComfyUI 0.3.71?
Or any workaround to prevent the RUN button from being disabled after reloading a workflow?

Thanks in advance!