Just to confirm, are you adding the widget inside a native page (Atlas Native)?
No. Our platform is set to "Web and the layout is set to "HybridPhone_Default_WO (Atlas_UI_Resources)". We at the moment are trying to go from a version 8 to a version 9.24.41 Mendix app but not sure what the best way to convert our existing app to a little more modern app. What should we do?