Issues with Widgetkit

Where are the Widgetkit 2 rendering layouts?

Widgetkit2 integration has no rendering layouts, only the content is passed to the Widget which will take care of the rendering using its core layouts.

The elements assignment settings are not applied on Widgetkit Mapping

As a general rule the elements are not rendered but mapped to Widget fields. For example, when placing a GoogleMaps in the location position you would be mapping its location to Widget location field leaving the rendering to Widget. There are some exceptions though, as the content position, where the elements are rendered before passing the results to the Widget, there your assignment settings will have effect.