No there is no other minify plugin installed. By the way, the CSS Optimizer now started to randomly break pages. In some way, it blocks Elementor CSS and in a cascading pattern, many Elementor CSS aren’t loaded anymore. It can be fixed by just making some change in Elementor and saving it again. But it is unpredictable which site gets killed when by the CSS optimizer So I also need to turned it off. I really don’t understand why this plugin slowly gives up and every optimizer breaks. We really thought about WP Premium but apart from it’s caching function nothing works anymore.
I mentioned that we also tried the option to pack them in separate blocks but it didn’t fix it. And yes we only checked the third box “Contain each included file in its own block ” and left the box “Enable merging of JavaScript files” unchecked.