sideways beams

In some areas where I build (this has only happened once), the beam turns perpendicular and the blue node thing is across from it as if where it should be, it still works but just looks odd. and there was an incident where I somehow placed a wheel sideways, (colliding with the beam it on) and that didn't work as a wheel just flew off haha. Although later I was able to replace the wheel with a safe working one.