Crawler not following all site maps

Wordpress LScache Plugin: Crawler not following all site maps

My site is multilingual using WPML and therefore has multiple sitemaps. Since I can only specify one sitemap for the crawler I created a custom sitemap index: However when running the crawler it or refreshing the map it only seem to follow the first sitemap in the index. Is there another way to crawl a multilingual site / site with multiple sitemaps? Side note: WPML thinks this splitting of sitemaps is a non issue since search engines will follow the langhref attributes on pages in the default languages sitemap anyway. LiteSpeed Crawler does not seem to do this however. please try set Drop Domain from Sitemap to OFF it does give me multi-XML Thanks! Disabling Drop domain? made it include all maps.