I did try looking for obvious causes first. 🙂 The post state is “published,” the post isn’t hidden, and it’s set to “index, follow.” No pages are specifically excluded in Sitemap settings, and there’s no Sitemap setting that turns off posts. (Or: none that I can see.) It’s still possible I’m missing something, I’m just not sure where!
I’ll keep an eye on this as I continue to poke around, and come back if I can’t resolve it.
Thank you for verifying that it should be there, that’s helpful!
Michael
PS Posts do show up in `feed.xml`.