Okay, my apologies. I have one more update:
I toggled OFF the “Search in content” toggle and that fixed it. Now the correct post appears in the correct spot. But I’m still confused as to why “1200” brought up ALL the included pages when content toggle was on, especially when I couldn’t find that string on some of those pages. If you have any input on that, let me know. For now, I’ll just keep that “search in content” toggle off, although I liked the idea of having that on at some point so descriptive text on product pages can be taken into account.