DefaultSceneRoot causes Get Actor Bounds to Return 128

When using the Default Scene Root component in a blueprint with no additional components, the box extent of the Get Actor Bounds node is returning 128,128,128 instead of the expected 0,0,0.

If you use a Scene component in place of the Default Scene Root, it returns 0,0,0 as expected. This could be related to the sprite component that comes along with the Default Scene Root, as the Scene component does not have this sprite and works as expected.

1. Open the editor
2. Create a new blueprint based on Actor
3. Add a Get Actor Bounds node
4. Add a Print String to print the Box Extent of the Get Actor Bounds node
5. Add the blueprint to the level
6. PIE

Result: Actor Bounds returns 128,128,128 when using the DefaultSceneRoot component.

Expected: The DefaultSceneRoot component would not affect the bounds, and it would return 0,0,0 as it does if you just use a Scene component.