I installed Hazel 5 by double clicking, and applied my licence (upgrade from Hazel 4) and the app runs fine. But when I click on add folder I get the dialog to select a folder, click open and after dialog nothing appears. If I click on create folder group nothing happens. I also tried from the menu bar with same results.
I went into System Preferences and added full disk access *wasn't prompted for it" and still the same issue.
Big Sur 11.0.01
Hazel 5.0.1