Artificial Ignorance. Automatic running head????

Why on earth would Indesign automatically insert a running head on the first page of a chapter that has been placed in a book at the same time all files in the project are placed in a book? Been a user for several decades and have never had a file get a running head automatically inserted on the first page of a chapter simply by putting all my files in a book. As you can see, I already had shifted the running head to the bottom of the page with only the folio. But once I placed the files in the book, Indesign decides to place a running head at the top. (before placing the files in the book, all files were all recto start, regardless of whether they would remain recto start, or be verso start once placed in the book, AS I HAVE DONE FOR DECADES), Has so called "AI" or as I call it "artificial ignorance" decided that a shifted page needs a new running head inserted? In all my decades of using Indesign, files placed in a book are done so without alteration of their first page compositon. WTF? Humanity will suffer from AI not because its intelligent, but because its incompetent. Any insight is appreciated. Obviously its a simple matter to delete the running head, but just wondering if this is the new normal of working with Artificial Ignorance software?