Redirect sitemap.xml not working

redirect not working:

[build]
  command = "npm run build"
  publish = "dist"

[[redirects]]
  from = "/sitemap.xml"
  to = "https://insightly-5iyw.onrender.com/sitemap.xml"
  status = 200
  force = true
  headers = {X-Debug = "Netlify-Redirect", Access-Control-Allow-Origin = "*", Content-Type = "application/xml"}

[[redirects]]
  from = "/*"
  to = "/index.html"
  status = 200

build post processing show redirect rules applied without problem.

expect https://insightly.top/sitemap.xml to return same content as https://insightly-5iyw.onrender.com/sitemap.xml

not sure why ā€œhttps://insightly.top/robots.txtā€ is not working any more, checked some history deployment, and sometimes it works, sometimes not, looks like some bug on netlify edge?

I’m seeing the same content on both URLs. Do you have a way to reproduce the issue?