I tried your suggestions, and also tried every other possible change I could think of with no luck. I even deleted the blog post and then made a completely new post, and still it does not show up on the syndication page. I’m extremely frustrated and not sure what to do.
When I changed to a different template the blog post shows, but the template you suggested doesn’t have a syndication or excerpt page so it’s not an apples to apples comparison. I went into settings and tried increasing the numbers of post page displays far beyond the number there, and still no luck.
What do you suggest next?