Reusable element not visible on index

Hello Folks,
I created a reusable element which is my navbar a floating group.
When I place that reusable element on my index page is it not visible but when I preview my app it is visible there. What went wrong?
here is snapshot of my index page where you will find a navbar is added but not showing.

This would likely be related to the height. What is it set to in the ReU and on your page?

min height of ReU is 80.

I believe this could be a Bubble bug, sometimes this happens to me too, and frequently.
Sometimes, you just need to switch to another page of your project, and go back to the page where your reusable item is and it will appear, like magic…