There's a really interesting story I read somewhere about some application which used neural nets to optimize for a goal (this was a while ago, it could have been merkel trees or something, who knows, not super important)

And everything worked really well until they switched chip set.

At which point the same model failed entirely. Upon inspection it turned out the AI model had learned that overloading particular registers would cause such an electrical charge buildup that transistors on other pathways would be flipped.

And it was doing this in a coordinated manner in order to get the results it wanted lol.

I can't find any references in my very cursory searches, but your comment reminded me of the story