In an APL 1.1 doc I have this as the second item (after BackgroundImage) in a Container, which is the first item in MainTemplate:
{ "type": "AlexaHeader", "headerTitle": "Header goes here" }
In the simulator, the header shows up when I import alexa-layouts 1.0.0 but does not show up when I import alexa-layouts 1.1.0. The header does show up in 1.1.0 on other simulated devices. Any clues?