How to prevent BTT's TouchBar controlling a certain app?


I have an app called iWall which is essentially an app which allows you to have a moving desktop wallpaper. You select a downloaded video file & it loops it as your background. The problem with this is BTT's TouchBar constantly has that app's media override anything else. For example, if I start playing music, the song and its controls appear briefly on my TouchBar, as it should. Then after a few moments, the video file for the background "overrides" the song so it disappears from the TouchBar and the pause/play/skip widgets begin to control the background again.

I was wondering if there is a way to completely prevent BTT from controlling/accessing this app. I tried the "Disable BTT for..." option but the app in question, iWall, is not available as it never appears as the Active App.