Did you reload the page or change to e.g. Groups and Back to User?
Should work just fine.
If not, please ensure that there are no errors in your production log.
Oh… and maybe use the template that you removed to provide further information.
* Used Zammad version:
* Used Zammad installation source: (source, package, ...)
* Operating system:
* Browser + version:
### Expected behavior:
*
### Actual behavior:
*
### Steps to reproduce the behavior:
*