Installed the mod mid-run because Cerys.
Seems like the range only applies to newly placed objects?
A keybind to scan current surface for affected objects, and adjust the range in consequence, would be a nice addition :)
Otherwise thank you very much for this much, I appreciate it

Hmm, this should not be the case. I am changing the actual prototypes rather than adding copies. Any issues with newly placed objects is likely a bug, or caused by another mod.

The same thing is happening to me, I suspect that maybe the game has some kind of optimization that means it calculates the tiles that are under its effect only once upon placement and then caches the result.