mysql - Sequelize 4 - eagger の読み込みでの多対多の挿入の問題

Question

こんにちは人々、私はこれらの 2 つのモデルを持っています:

const media = sequelize.define('media', {
              id: { type: Sequelize.UUID, primaryKey: true, defaultValue: Sequelize.UUIDV4 },
              name: { type: Sequelize.STRING, allowNull: false, unique:'compositeIndex' },}, { freezeTableName: true });

const mediaGenre = sequelize.define('mediaGenre', {
                  id: { type: Sequelize.UUID, primaryKey: true, defaultValue: Sequelize.UUIDV4 }}, { freezeTableName: true, name: { plural: 'mediaGenre' } });

そして、これらの 2 つの関係:

media.hasMany(mediaGenre, as: 'mGenre');
mediaGenre.belongsTo(media);

media.belongsToMany(genre, { through: mediaGenre });
genre.belongsToMany(media, { through: mediaGenre });

メディアを作成したいときは、次のようにします。

MediaModels.media.create(
            {name: 'Hulk',
            mediaGenre: [
            { genreId: '021baab5-7fc6-4b06-aca5-e4b1ed1f3ce4' },
            { genreId: '03f069a4-dc52-4ab5-82d3-6bcd67d2d29e' }]},
            {
                include: [
                    {model: MediaModels.mediaGenre, as: 'mGenre'}
                ]
            }
        );

These has been working with sequelize 3 and recently I updated to sequelize 4.4.2 and it is not throwing error but the table mediaGenre it's not been populated.

Any ideas of what could be the error?