Our ArcGIS Enterprise is currently at 11.3. We are upgrading to 11.5 sometime this summer. Our DEV ArcGIS Enterprise environment is already at 11.5 for testing purposes. I was testing out Experience Builder functionality in Enterprise 11.5 and discovered the Menu widget can no longer be added to the Widget Controller widget. I also tested this in AGO Experience Builder and the same issue is present. In 11.3, we have experiences where the Menu widget is within a Widget Controller. I've attached some photos that show the Widget Controller add widget window. In 11.3, you'll see the Menu widget is available to add, while it is not an option in 11.5 or in AGO. I'm wondering if the ability to do this was removed, it's a bug, or I'm just missing something. Thanks!