Missing letter ‘s’ in excerpt.

That IS very strange.

This may be a plugin or theme conflict. Please attempt to disable all plugins, and use one of the default (Twenty*) themes. If the problem goes away, enable them one by one to identify the source of your troubles.

Thank You Steven for Your response.
I did everything You asked to, but nothing have changed. The theme is build over WordPress theme Twenty Thirteen version 1.9 – maybe this will give some clues.

I’m missing letter ‘s’ in excerpt on my site

Where exactly the s letter should be?

Letter “s” is missing only in excerpts, in title it is ok, for example first post (missing “s” is putted in [s]):

Title: “Centralne instalacje filtrowentylacyjne dla stanowisk spawalniczych”
Excerpt: “Projektujemy, wykonujemy a na[s]t?pnie do[s]tarczamy i montujemy wielo[s]tanowi[s]kowe in[s]talacje…”

• This reply was modified 7 years, 3 months ago by konar.

This sounds as if some function is filtering the_excerpt and has a small mistake in its search/replace code.
Try to deactivate one plugin at a time and force reload with ctrl-F5 every time.

Try to deactivate one plugin at a time and force reload with ctrl-F5 every time.

Complitly no effect.

• This reply was modified 7 years, 3 months ago by konar.

Interesting thing: These s:es are not just discarded. They are replaced by space character.

If you enter a manual post excerpt, will it have the same problem?

You’re using a custom theme. Do you in functions.php have any function filtering the_post or the_excerpt? (Or do you include any other files with functions?

Ok, i found it! ??

It was error in function made for limited excerpt by character:

function get_excerpt(){
$excerpt = get_the_content();
$excerpt = preg_replace(" ([.*?])",'',$excerpt);
$excerpt = strip_shortcodes($excerpt);
$excerpt = strip_tags($excerpt);
$excerpt = substr($excerpt, 0, 100);
$excerpt = substr($excerpt, 0, strripos($excerpt, " "));
$excerpt = trim(preg_replace( '/\s+/', ' ', $excerpt));
$excerpt = $excerpt.'...';
return $excerpt;
}

There was missing “\” in “/\s+/” ??

Thank everyone for help.