I created a Web App in ArcGIS Online and used the Box Theme template. I added three of the Layer Widgets as a Group Widget because I wanted them organized as they are in the source web map.
When clicking on the (group) layer widget, one of the group layers appears expanded, and the other groups don't display, so the reader interacting with the app could easily skip the other group layers that are also very important.
When configuring the layer widget, there's a box to check to choose to expand all the layers, but even having that unchecked doesn't make the group layers collapsed.
Is there any solution?
Thanks in advance,
For map or scene defined in your portal, you set whether layers are visible or not.
Maybe it'll help.