Hello,
I just faced a case like this and this worked with me
add_filter('acf/validate_value/key=field_5d3c9ebc8acdd', 'disable_field_validation', 999, 4);
// you can change key with name or type=url.
function teasdasdad($valid, $value, $field, $input ) {
// Also you can write your own validation here.
return true;
}