Can not create Select input from same list of data

I am using CakePHP 4.0.3.

My Kids table has 3 fields (nationality_id, language_id, other_language_id) associated with the same tables nationalities
I have them all declared in KidsTable as below:

 $this->belongsTo('Nationalities', [
            'className' => 'nationalities',
            'foreignKey' => 'nationality_id',
        ]);
        $this->belongsTo('Languages', [
            'className' => 'nationalities',
            'foreignKey' => 'language_id',
        ]);
        $this->belongsTo('OtherLanguages', [
            'className' => 'nationalities',
            'foreignKey' => 'other_language_id',
        ]);

And of course they are in accessible in KidEntity:

 protected $_accessible = [
       ...
        'nationality_id' => true,
        'language_id' => true,
        'other_language_id' => true,
        'nationality' => true,
        'language' => true,
        'other_language' => true,
     ...

But in Edit view, only Nationality get list of option, the 2 language Select form control get nothing.
The view is at below:

 <div class="col-12">
        <div class="form-group">
               <?= $this->Form->control('nationality_id', ['class' => 'form-control', 'option' => $nationalities,  'empty' => true ]); ?>
          </div>
  </div>
                        
  <div class="col-6">
         <div class="form-group">
                <?= $this->Form->control('language_id', ['class' => 'form-control', 'option' => $nationalities,  'empty' => true ]); ?>
         </div>
 </div>
                        
 <div class="col-6">
          <div class="form-group">
                  <?= $this->Form->control('other_language_id', ['class' => 'form-control', 'option' => $nationalities,  'empty' => true ]); ?>
          </div>
 </div>

The weird thing is that, I use the same 3 fields in other view of another Model (Users model, I patch associated data), of course I have to use TableRegistry to locate the tables and get values, I can uses the set of data for all 3 of those fields.

I also tried to use TableRegistry to get data into a variable with different name, still only Select input for Nationality has option.
In some modification of the code, non of the Select input has value at all.
I confused, I still see the values in view (via ->set() ), but can’t use. Why ?

For a start, I think the key in your array should be ‘options’, plural no singular.

In the best of all possible worlds this would solve your issue.

Yes, thank you a lot. I always make typo mistakes. Thanks again, this drives me crazy for last few hours

It worked with the typo for the nationality_id field, because if there is not options key specified, the helper will look for a variable with the pluralized name, in this case $nationalities.