At present, machines don't currently seem to accept energy from Immersive Engineering, either directly through an adjacent capacitor set to output in that direction, or via the connectors and wire power transfer system.

seems that Immersive Engineering connectors don't pick up on World::notifyNeighborsOfStateChange calls...

if you configure the machine BEFORE putting the connector on it it should work fine.

not much I can do there... I could be wrong, but I would make an issue about this on Immersive Engineering project...