Pop-up is not centrally aligned while rotating tablet
The Atlas-pop up a page that has been stimulated from a button usually will be in the center of the display screen of responsive-tablet view (of portrait mode). But, Why does the pop-up page is not aligned in the center of the screen for the landscape mode of the tablet. Is there any ways to fix it?
Did you try in Mendix 8.7 release? They fixed an issue, that might fixes your too?