WordPress.org API for Theme Not working?

Hi,

I tried to work with the WordPress ORG API recently, I see Plugin working fine but not theme API ?

When I visit this Link : https://api.wordpress.org/themes/info/1.1/twentysixteen

Instead of showing the details in JSON format about the theme it shows 404 error?

But In case of plugins its work fine :

https://api.wordpress.org/plugins/info/1.0/facebook

Let me know if I am missing anything.

Thanks in advance
Chan