Look like model condition are not set properly when using cascade dropdown since https://github.com/atk4/ui/pull/1559 In https://ui.agiletoolkit.org/demos/form-control/dropdown-plus.php No product is shown when selecting Category and SubCategory <img width="688" alt="Screen Shot 2021-01-21 at 10 43 43 AM" src="https://user-images.githubusercontent.com/2204478/105375402-ad169780-5bd6-11eb-9dbe-89f881072d0a.png">