With the 4.29 release of the API, the LayerList widget has also been modified. I have a Layer List widget with group layers, where individual layers are added to different group layers. Custom content is then created for each layer (not group layer) when it is added (listItemCreatedFunction) and the content is added to the Layer List Item Panel, where some layer settings and functions can be performed. A "calcite-select" element is also added to the list item panel, which worked fine in 4.28, but it would not open and show the list options in 4.29. This only happens for layers inside the group layer of the Layer List widget. If I drag that layer to outside of the group layer and it becomes part of the main layer list, the select dropdown works.
My workaround option, which I actually prefer now, is to set the layer list item's "flowEnabled" property to "true", which then opens the layer list item panel inside a "calcite-flow" item inside of the layer list widget. Is there some other setting I can look at to enable the select dropdown to work for the layer inside of the group layer?