link in recent posts dont work

This happens because WordPress removes all HTML code from excerpts by default. Not only links, but also formatting.

You can change this behavior. Here is a detailed article on how to do this with individual programming: https://wordpress.stackexchange.com/questions/141125/allow-html-in-excerpt

Plugins may also help with this: https://www.ads-software.com/plugins/tags/excerpt/

Thanks, your answer was very helpfull and gave good direction.

However i had the idea that the proposed article was outdated.

I have deleted the following line in formatting.php and that worked:

$text = strip_tags( $text );

• This reply was modified 3 months ago by dirkprop.

I have deleted the following line in formatting.php and that worked:

You don’t want to mess with WordPress’ core files at all. Even if you’re careful not to introduce any errors,

1) Your theme or a plugin may be using the core function you edited, leading to errors (now or in the future)

2) Any WordPress update will override your changes, and then you’re back to where you began.

Thanks for the warning, George, I ‘ll bear that in mind.

But for the moment I keep this solution.

It is dissapointing that the WordPress core doesnt support this rather basic functionality. There are several plugins that give addtional functionality for the formatting of excerpt but they are old and not tested for recent version of WordPress.

As already written, your adaptation is not a good idea at all. I would rather recommend working with hooks as described in the article above.