I have this function on my express route that update a user information and its role. The role is another Sequelize Object and I have set up a relationship as one to many:

User.belongsTo(Role);
Role.hasMany(User);

In my route this is my updatefunction:

const UpdateUser = async user => {
    if (Object.keys(user).length !== 0) {
        const { id, firstName, lastName, phone, email, role } = user;
        let modUser = await User.findOne({ where: { id }, include: [{ model: Role}] });
        if (modUser.firstName !== firstName) modUser.firstName = firstName;
        if (modUser.lastName !== lastName) modUser.lastName = lastName;
        if (modUser.phone !== phone) modUser.phone = phone;
        if (modUser.email !== email && UniqueEmail(email)) modUser.email = email;
        if(modUser.Role.id !== role) {
            await modUser.setRole(await Role.findByPk(role));
        }
        modUser.save();
        modUser = await User.findOne(
            {
                where: { id },
                include: [{ model: Role}],
                attributes: { exclude: ['RoleId', 'password'] }
            },
        );
        return modUser.reload();
    }
    return { error: "No user found" };
}

The function works fine updating the info and the new role in the DB, the problem is that the returning User, sometimes doesn't have the updated info, but the previos info. I am not sure if I am implementing this wrong, or trying to update the User model and then asigning a new Role at the the time is breaking something.

Any ideas? Thanks!