'Start backup' causes 'Invalid task name' error and no backup begins

I have…

  • Read the following guideline: Troubleshooting and Support | Squidex. I understand that my support request might get deleted if I do not follow the guideline.
  • Used code blocks with ``` to format my code examples like JSON or logs properly.

I’m submitting a…

  • Regression (a behavior that stopped working in a new release)
  • Bug report
  • Performance issue
  • Documentation issue or request

Current behavior

Clicking “Start backup” in Jobs and Backups causes the error “Invalid task name” to be displayed on screen, and the backup doesn’t start. In the network log of the browser invalid task name POST request returns status code 400.

Expected behavior

The backup should start and the screen should indicate backup is underway.

Minimal reproduction of the problem


App Name:

  • Self hosted with docker
  • Self hosted with IIS
  • Self hosted with other version
  • Cloud version

Version: [VERSION]


  • Chrome (desktop)
  • Chrome (Android)
  • Chrome (iOS)
  • Firefox
  • Safari (desktop)
  • Safari (iOS)
  • IE
  • Edge


Backup previously worked when we last did it about 7-8 months ago.