Why doesn't the Wordpress cache lifetime change?

Question

htaccess

PageSpeed ​​Insights stubbornly swears at the efficient use of the cache for my .jpg .png images, although there are lines in .htaccess:

<IfModule mod_expires.c>
ExpiresActive On 
ExpiresDefault "access plus 6 month"
ExpiresByType text/css "access plus 6 month" 
ExpiresByType text/plain "access plus 6 month"
ExpiresByType image/gif "access plus 6 month"
ExpiresByType image/png "access plus 6 month" 
ExpiresByType image/jpeg "access plus 6 month" 
ExpiresByType image/jpg "access plus 1 year"
ExpiresByType application/x-javascript "access plus 6 month"
ExpiresByType application/javascript "access plus 6 month"
ExpiresByType application/x-icon "access plus 6 month" 
ExpiresByType text/html "access plus 0 seconds"
</IfModule>

also added:

<filesMatch ".(jpg|jpeg|png|gif|ico)$">
Header set Cache-Control "max-age=31536000, public"
</filesMatch>

In PageSpeed ​​Insights, the lifetime is still 7 days.
There seems to be nothing in the source code regarding caching.

Where to drop, what to try?
Thank you.

Answer 1

Restart the Apache (httpd) process.