TL;DR My Sitemap shows a last crawl date of 2-3 days ago in Search Console and I wondered if there was a method of requesting Google re-crawl the sitemap, in the same way as you can ask it to re-crawl a page?
Explanation - I have a problem with a updated page not showing correctly in Search results. I have asked for several re-crawls over several days without luck. I believe this may be as a result of an old lastmod tag on my sitemap. I have corrected that issue and now a live view of sitemap now shows a correct lastmod. I think Google was skipping over the page re-crawl request because its last index was newer than the lastmod before I corrected that issue. Now the lastmod is newer than the last crawl date but now its not touching the Sitemap file to see the updated lastmod. I suspect it will in its own time in the next few days but still, its annoying...
Is there a way of requesting a sitemap re-crawl?