Could not find workflow/Problem activating workflow

Questions
1

Describe the problem/error/question

My workflow got lost apparently. It is listed in the workflows (as active and a warning that it could not be started). The error occured after adding new nodes to an existing workflow. Now when trying to open it, I am redirected to “new” am I can’t revert to an earlier version.

What is the error message (if any)?

Two messages:

Could not find workflow propertyValues[itemName] is not iterable

Problem activating workflow - The following error occurred on workflow activation: propertyValues[itemName] is not iterable

Please share your workflow

I’d love but I can’t access it. It was slighly modified Telegram-based assistant.

Information on your n8n setup

  • n8n version: 1.103.2
  • Database (default: SQLite): default
  • n8n EXECUTIONS_PROCESS setting (default: own, main): default
  • Running n8n via (Docker, npm, n8n cloud, desktop app): Cloud
  • Operating system: Windows
2

Hello Jakub, Welcome to n8n community.

I’ve go through your problem, and it’s bad that your workflow is vanished from workflows, but this issue sometimes happens when a node is saved with invalid or incomplete data.

Let’s suppose: when a property expecting a list receives null or an object instead. Then this error like propertyValues[itemName] is not inerrable, it indicates that problem, the workflow becomes unreadable, fails to activate, and redirects to a blank editor.

Solution can be contact n8n support if you are using cloud based n8n so they can recover it by their backend if saving history is activated.