It’s about time Apple takes the new keyboard out back and shoots it. It’s beyond help and needs to be retired… permanently. This design can’t be saved.
It HAS to be a fault with the butterfly hinge mechanism. I’m putting my bet down now that it’s a butterfly mechanism fault that can only be fixed by putting a working keyboard that’s proven in the systems. Up next is to wait for the denial (despite KNOWING it’s a problem), the lawsuit and bullshit repair program to get rid of the lawyers (while denying the design flaw everyone knows exists).