The question is what is an orbital prison on a colony world supposed to do? Is it supposed to only reduce crime on the colony world? Is crime on a colony world something the player needs to worry about? Does it have any effect on the game?
I've been playing this a while and I never build the OP's four items over colony worlds since I assume they don't help at all. Were they intended to improve the core world? If they were intended to improve the core world, then you have a bug. My guess is they weren't intended to improve the core world, and are thus useless, but it would be interesting to know.
Cheers,
CB