"Get Component Bounds" not returning correct bounds on diagonally rotated mesh

I’m using UE4 4.26.1.

Hi! I’m having difficulty retrieving the exact bounds of a custom static mesh. As a demonstration, I’m rotating two objects diagonally. I using this logic draw the bounds:

338995-1.png

In my game, I require the drawn debug box’s extent’s Y to be elongated to 1600 and the it’s rotation to be absolute:

338996-2.png

On the left is my custom mesh and on the right is a generic box. As you can see, the bounds doesn’t quite match the custom mesh on the left, while the generic box mesh is shaped perfectly.

338997-3.png

338998-4.png

The collision for my custom mesh is very simple. I tried deleting that simple sphere collider, but that didn’t make a difference.

image.jpg

I’ve tried using “Get Local Bounds” and it seems to return a better representation of the bounds of my custom mesh:

However, since I’m required to elongate the debug box’s Y axis and lock the rotation, I’m struggling getting the the drawn bounds rotated correctly.

What can I do here? Let me know if you require any additional information.