Country Block Customized page doesn't update after modifiying

I have already blocked all visits from a country (Sorry I can’t say its name).

It did work very fast but the page displayed is not as expected. It seems it’s using an old version of my 500 page, which is not what I want.

I have tried to update it in the “Custom Pages - Personalize the error and challenge pages that Cloudflare presents to your visitors.” section, but still, it’s not working.

Is there anyone could help out?

Thanks,

May I ask how did you test it?

Have you tried using some other Web browser, or a Private Window?
How about clearing your Web browser cache, just in case if “old one” was cached at your Web browser even after you’ve made and applied the new changes?