225 of 238 pages indexed. One was crawled a month ago and still isn't.

238 URLs in the sitemap, 225 indexed, checked this morning against the GSC coverage report. Most of the rest have an obvious excuse: too new, not enough internal links, wait it out.

One doesn't. It was actually crawled by Google over a month ago (last crawl July 19) and every daily pull since has shown the exact same status: Crawled, currently not indexed. Not unknown to Google. Not waiting to be discovered. Google looked at it and chose not to index it, and Search Console gives no reason anywhere.

What actually got a page unstuck from that specific status for you? Rewriting the content, more internal links pointing at it, or did it just eventually resolve on its own?