WordPress homepage not showing any post

Hi
I have wordpress site self-hosted and there is a weird problem in it.
Only handful of themes are able to show posts on homepage.
I have tried many themes and they don’t show any post.
Sidebar, header and footer work fine. But homrpage doesn’t show any post.
Archives also show posts fine.

I have tried deactivateing all plugins and it didn’t help
I have tried pause/purge cloudflare cache and it also didn’t work
Front page is set to show latest posts in reading setting.

The themes that don’t show posts are working fine tested on other wp installs.

Any help would be appreciated