The Electric Motor causes a ticking block entity crash (Error: java.lang.NullPointerException: Ticking block entity) when powered from the top; works as intended when powered from the side. This error only occurs when an Immersive Engineering Wire Connector or Capacitor with output on the bottom is placed above the motor, providing power.
Ender IO Capacitor Banks and Mekanism Energy Cubes don't have this interaction. Mekanism Universal Cables connect to the top of the motor, but don't feed energy in, and don't cause the crash.