Urgent: Laravel SEO sitemap bug!

We just launched our new 'Dynamic XML Sitemap for Laravel & All Websites' product, and I'm facing a critical, infuriating bug with the auto-updating feature. This is killing our initial traction, especially with Laravel SEO.

• The Core Problem: The sitemap isn't updating automatically after new content (blog posts, product pages) is published in our Laravel app. Google Search Console is showing stale data, and new pages aren't getting indexed.
• What I've Tried So Far (and Failed):
  • Double-checked all cron jobs related to sitemap regeneration. They seem to be running fine, but the XML file remains unchanged.
  • Manually triggered the sitemap update command (e.g., php artisan sitemap:generate) multiple times. It sometimes works, but definitely not consistently or automatically.
  • Inspected the generated XML sitemap for any malformed tags or errors. It looks valid when manually generated.
  • Verified database hooks and events for content changes – ensuring they should be triggering the sitemap update logic.
  • Cleared all caches (Laravel, browser, even server-side if applicable) after updates, but no luck.
• Expected vs. Actual: I expect the sitemap to reflect new content within minutes of publishing. Instead, it's hours, sometimes days, behind, making our 'auto-updating' claim look ridiculous.
• Specific Observations: Google Search Console is reporting 'Discovery - Not indexed' for new URLs that are clearly in the database and accessible. Our sitemap submission status shows the old page count.
• Urgent Plea: I'm completely stuck and have spent countless hours on this. What am I missing? Is there a common pitfall with dynamic sitemaps in Laravel that I'm overlooking?
• Closing Hook: Has anyone faced this exact issue with dynamic sitemap generation and Laravel SEO before? Any fresh ideas would be a lifesaver!