sliders disappier from the frontend after activate

Hi,
When i activate the Meta Generator and Version Info Remover Plugin, the smart slider3 sliders disappier from the frontend. I use WP5.9.1 with the twenty twenty two theme. Do you know this problem and do you have a solution for it?

The guys from nextendweb wrote to me about it:

The problem within this plugin happens, because they are closing all PHP codes before all of them including ours could finish. The source of the problem is this file:
\wp-content\plugins\meta-generator-and-version-info-remover\meta_generator_and_version_info_remover.php
line 346.:

    add_action('wp_head',function (){
        ob_end_flush();
    }, 992);

If they would delay this code to happen for example on 'shutdown', not on 'wp_head', that way our code could run too:

    add_action('shutdown',function (){
        ob_end_flush();
    }, 992);

So you should contact this plugin's developers and ask them to fix this issue for you, to make sure the fix is included in the next versions too.

What do you think about this Problem? Any solution?

Best Regards
Arno Henning