So I'm running into these situations with composition in blender and could use some help as I feel it a simple answer but it hard to find it. So first in composition I'm trying to render the result as shown in A but when i render it, i don't get the background as shown in B. So is there something off because i was able to…
I suspect you'll get more help with a sample blend file (you can drag-n-drop a ZIP to attach it here) and letting people know the exact version of Blender you're using.