How to hide the border around the second screen?
In order for us to provide better support, we need to see the log generated by citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File
Click into the second window then hit F11 on your keyboard.
It does not help. It works in some games, not in this one.
Make sure you’re on the latest Citra Nightly build. We’ve had some changes to how the hotkeys function on the secondary window.