stopped working with WordPress 4.52

I run the plugin on WP 4.52 and it works for me.

Are you sure nothing else changed other than upgrading WP?

Can post the rule and a URL that it’s supposed to execute on?

The rule is

Kategorie: Ausstellungen > Ausstellungen

on https://galleriawolf.ch/ausstellungen/

I am using CSS Hero, but RTFR was working with that before

I installed your theme (Make), created a category, and used RTFR to replace the heading of that category page. For me it worked. So I’m not sure why it doesn’t work for you.

Can you try creating a simple rule that replaces a single word with no punctuation with another word? Ideally an element that’s not affected by CSS Hero any other plugin.

sorry, does not work with another rule (simple word, no CSS Hero)
I even reinstalled RTFR

I checked the table wp-options, but could not find any RTFR entry

Thank you for trying. It would seem the plugin isn’t running at all for you.

The only other thing I can think of is turning on debugging. This may produce an error that reveals a problem. I would turn it on only temporarily though.

will try that

could it be a problem with the latest YOAST?

I have the latest Yoast active and RTFR still works.