[Hook] AfterUnrelate never call whereas AfterRelate is

[jmh]

Hi

I have a many to many relationship beetween a Custom entity - Training - and the native Contact entity
I add a field in the Training Entity that holds the number of contacts (number of trainees)

I create a Hook to update the number of trainees. AfterRelate is called when I select a contact, but AfterUnrelate is not when I delete a contact from the contacts list.

Am I missing something ?

B/R
JM

class CountTrainees implements AfterRelate, AfterUnrelate
{
    public function __construct(
        private EntityManager $entityManager,
        private Log $log
    ) {}

    public function afterRelate(
        Entity $entity,
        string $relationName,
        Entity $relatedEntity,
        array $columnData,
        RelateOptions $options
    ): void {
        $this->updateCount($entity, $relationName);
    }

    public function afterUnrelate(
        Entity $entity,
        string $relationName,
        Entity $relatedEntity,
        UnrelateOptions $options
    ): void {
        $this->updateCount($entity, $relationName);
    }