allGoogleXMLSitemap has been updated to version 1.1.4 late this afternoon, such that the sitemaps use SEF urls when available.
This was an issue for some clients, where Google was reporting that some of their sitemaps were 301 redirects, caused by some configurations of SEF components.
If Google reported errors with your sitemap submission, please upgrade to this version and let us know how you go. It may a case of resubmitting individual sitemaps within the index. Otherwise if Google reported no errors, there should be no need to upgrade.
Update: Moments after publishing this article (less than 10 seconds), a Google Alert I had set up for Joomtraders was triggered and sent me an email of this update (signifying Google had detected the update). This was confirmed via a quick Google search, yielding the update already in the search results within a minute or two, due to the dynamic sitemap doing it's thing!