Hello,
When modifying a drop-down menu in the inspector. the observable is not triggered.
One other do not trigger right away.
Try in the PG this : (See in the console)
1: Change Parent property (the observable is not triggered)
2: Change IsEnabled property (the observable is not triggered)
3 Change isPickable property (the observable IsEnabled it triggers now + isPickable is triggered)
When isPickable or others is triggered, IsEnabled is also triggered at this time but not when it should have been. And all the drop-down.