Google deindexing issue after switching to GeneratePress theme

Hello,

After switching my WordPress site’s theme to GeneratePress, I encountered a serious indexing issue.

Before the theme change, my website had multiple pages indexed on Google. However, shortly after activating GeneratePress, all indexed pages were removed from Google’s index. Currently, none of my pages appear in Google search results.

Here is what I have already checked and done:

Google Search Console is properly set up and verified

XML sitemap is submitted and successfully read by Google

No noindex tags are intentionally added

Robots.txt does not block crawling

Pages return 200 OK status codes

Manual URL inspection requests were made, but pages are still not indexed

There were no URL or permalink changes during the theme switch

The only major change on the website before deindexing was switching the theme to GeneratePress.

I’m concerned there might be:

A theme-related noindex output

A hidden meta tag or header added by the theme or Customizer

A GeneratePress setting affecting indexing or visibility

I have used the GeneratePress theme on many of my websites before, but this is the first time I have encountered such an issue.

I have added administrator login credentials in the private/support area, so you can directly inspect the issue if needed.

Could you please help me identify what might be causing Google to drop all indexed pages after activating GeneratePress?

Thank you in advance for your support.

Best regards,