ACF - Problem adding new location rule

Hello, I'm facing a strange problem adding location rules to my ACF field groups. I've a multilanguage website with ACF and WPML with all the correct plugins installed. I've created a group field and translated it but if in one language the location rules are correctly saved, in second language they don't. When I save, nothing happens. I need this urgently and I have some other works for who can solve this problem. Thank you!