When you import any vanilla scene in Blender, it shows being rotated to start in the transform. The real problem is adding locators and collisions in Blender to an imported scene and trying to export again.
The transforms don't match based on what you see visually in Blender vs what is in the game.
A painful workaround to this is the following:
In Notepad++ add my collisions and optionally a top level locator to make things easier
Import that recently adjusted scene in Blender
Move / duplicate what I need
Note the transforms in Blender
Open the scene again in Notepad++ and update manually
Basically I bypass the export process since it doesn't seem to line up.
When you import any vanilla scene in Blender, it shows being rotated to start in the transform. The real problem is adding locators and collisions in Blender to an imported scene and trying to export again.
The transforms don't match based on what you see visually in Blender vs what is in the game.
A painful workaround to this is the following:
Basically I bypass the export process since it doesn't seem to line up.