Same as the issue with Vehicle Radar, every Pyanodon's Industry Local radar (item = py-local-radar) has been replaced with a vanilla radar. Placing a new one instantly changes to a vanilla.
now I am going to sound like an ass, but why is the mod assuming that all radars are the mods radars? instead of checking only entity time check if it is a vanilla radar or a modified radar from this mod. fixes all problems with other radars.
If you are unhappy with the way this mod works in general, feel free to roll your own. You can even start with a fork of this one, the license allows you to do pretty much anything you wish with my code.