Why is a title showing twice in header of Instant Apps Atlas template?
I don't see it listed twice in the demo app here: https://www.arcgis.com/apps/instant/atlas/index.html
I also went through the steps to configure a new Atlas app and update the title and cannot reproduce. Is your app public? If so can you share? Or a screenshot?
@LeaDev Are you saying you resolved the issue? I only see one title in your image?
What are you expecting to see?
You can use the configuration experience to edit the title to whatever you'd like.