Grouped layers not showing options

I have added content for grouped layers, but they aren’t shown as it instantly hides them. I recorded a video to show the issue: https://drive.google.com/file/d/1EopBc_PUqCE06kwlXzGep74LDoc9uDEo/view?usp=drive_link

The page I need help with: [log in to see the link]