I noticed today that there is some strange behavior with the UVs when working with BSP objects in the 4.7 preview version.
- Create a BSP box
- Add a material to it
- Rotate the box
- Duplicate the box (alt-drag)
- Select the original box and modify the UVs (scale, pan)
- Select the duplicate and move it in the scene
Moving the duplicate causes the UVs on the original BSP box to pan and scale for some reason.