Dialog sheet under specific items

Hello there,
I created a dialog sheet which is linked to a contact button which works well. However when i’m clicking on the button the dialog sheet appear below some elements of the page instead of above them.
This problem appears only when i’m scrolling down on some specific items such as Q&A in the bottom section or an image slider in the main section…

I tried to fix the issue (checking bg color, opacity, etc) but I didn’t find out how my dialog sheet could appear above those objects.

Here is a screenshot to better a understanding :

Thanks for your help.
Lucas

Hi, have you checked the z-index of the elements?