I’m experiencing a critical issue with the ClickUp Trigger node in n8n that prevents me from activating workflows reliably.

Problem:
The ClickUp Trigger works correctly for the first 2-3 test executions, but then consistently fails with the error:

Problem running workflow

Bad request - Webhook configuration already exists

Steps to reproduce:

1. Create a new ClickUp Trigger node with event “task.updated” and List ID filter

2. Configure trigger with Team ID and credentials

3. Execute workflow 2-3 times successfully

4. On subsequent executions or when trying to activate the workflow, the error appears

5. The workflow cannot be activated or used anymore

What I’ve tried:

• ClickUp App Authentication: Created a dedicated ClickUp OAuth app and connected through the app credentials - same issue occurs

• API Key Authentication: Deleted all app connections and used direct API key authentication - same issue persists

• Manual webhook cleanup: Deleted all webhooks from ClickUp Settings → Integrations → Webhooks section

• Node recreation: Completely deleted and recreated the ClickUp Trigger node multiple times

• Workflow deactivation: Deactivated workflow, waited, cleaned webhooks, reactivated - issue returns after 2-3 executions

Expected behavior:
The ClickUp Trigger should create and manage webhooks reliably without duplication errors, allowing workflows to remain active indefinitely.

Actual behavior:
After 2-3 successful test executions, n8n attempts to register a webhook that ClickUp reports as already existing, even though:

• No duplicate webhooks are visible in ClickUp UI

• All webhooks have been manually deleted

• Using fresh API credentials