@JoAnne65 No, I'm not totally sure. The first time I saw it was years ago. I'd just patched my game so I could add my... I think it was my first handful of NRaas mods, although it could have been when I installed one more and updated the rest. But even at the time, I didn't distinguish between the interactions that were patched into the game and those that a mod might have provided, other than the obvious.
If the interaction did come from a mod, though, it's probably the one I wouldn't list along with the small group of others I had back then.