disable_functions has no effect in php 8

I need to use the proc_open function in my Drupal installation. But when I remove the disable_functions in Multi PHP INI editor, it seems to have no effect. I obtain an error in my Drupal installation: "The Process class relies on proc_open, which is not available on your PHP installation." And in phpinfo appears the disable_functions (see attached image). I have this problem with php 8.1.13 but not with php 7.4 Any help please? Many thanks. -12-26 a las 23.55.02.png">80781