Show 3D Widget for vector variable in a blueprint component does not correctly appear in blueprint viewport when implemented

Setting a vector variable to editable and showing a 3D widget within a blueprint actor component does not show the 3d widget within a blueprint implementing the component.

1. Open Editor (any project)
2. Create Actor Component Blueprint
3. Open component blueprint
4. Create a vector variable
5. Set vector variable to editable and show 3D widget, compile
6. Create a new actor blueprint
7. Open components>new component
8. Compile
9. Select new component in components window and attempt to view 3D widget in viewport.

Results:

No 3D widget is shown.

Expected:

3D widget appears in viewport.