NGINX doesn't want to hide the version, what could be the problem?

Question

Nginx

NGINX flatly refuses to hide its version.

# указавал в http, server, location
# нигде не работает
server_tokens off;

The server restarted after the changes.

What could be the problem?

Hosting: ru-center
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Answer 1

You cannot hide the version because what you see is probably the nginx version not of your host, but of the provider's nginx as a reverse proxy.

Answer 2

were there no transfers? try to put the server and check its response, there was a problem with the DNS cache in the browser