function in getOptionLabelFromRecordUsing() not working - Relationship of a Relationship

I need help, please. This is my Select:

                Select::make('interviniente_id')
                    ->relationship('interviniente', 'id')
                    ->options(fn (Get $get): Collection => Interviniente::query()
                        ->where('expediente_id', $get('expediente_id'))
                        ->pluck('interviniente_id', 'id'))
                    ->getOptionLabelFromRecordUsing(function ($value): ?string {
                            $persona = Persona::find($value);
                            return $persona->nombreCompleto;
                        })
                    ->label(__('Interviniente'))
                    ->preload()
                    ->searchable(),

                Select::make('interviniente_id')
                    ->relationship('interviniente', 'id')
                    ->options(fn (Get $get): Collection => Interviniente::query()
                        ->where('expediente_id', $get('expediente_id'))
                        ->pluck('interviniente_id', 'id'))
                    ->getOptionLabelFromRecordUsing(function ($value): ?string {
                            $persona = Persona::find($value);
                            return $persona->nombreCompleto;
                        })
                    ->label(__('Interviniente'))
                    ->preload()
                    ->searchable(),

It is showing the values for the field in the pluck('interviniente_id') but it is not showing the $persona->nombreCompleto. In the dropdown I see ids corresponding with "Persona" model ids (which is OK), so I only need to get those ids it is showing and replace them by the names or names and surnames of the persona model. No matter what I put in the getOptionLabelFromRecordUsing function, it always shows the same. I have also tried with getOptionLabelsUsing and nothing works. My relationships are MODEL_01 belongsTo MODEL_02 which also belongsTo MODEL_03, so how can I put the name of the field I need to retrieve? MODEL_01->MODEL_02->MODEL_03->fieldName or MODEL_01.MODEL_02.MODEL_03.fieldName ??? Nothing is working for me in that Select. Any help will be highly appreciated. Many thanks.

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function in getOptionLabelFromRecordUsing() not working - Relationship of a Relationship