Why is only the first spotlight is rendered?

[elias-Mimetrik]

I have a scene and 2 lights. I add the lights to the scene like this:

        filament::LightManager::Builder(filament::LightManager::Type::FOCUSED_SPOT)
            .color({0.0f, 1.0f, 0.0f})
            .intensity(lights_intensity_l)
            .position({center_r.x(), center_r.y(), center_r.z()})
            .direction({dir_l.x(), dir_l.y(), dir_l.z()})
            .spotLightCone(0.08f, 0.15f)
            .falloff(200.0f)
            .build(*this->engine, this->light_l);
        this->scene->addEntity(this->light_l);

        filament::LightManager::Builder(filament::LightManager::Type::FOCUSED_SPOT)
            .color({0.0f, 0.0f, 1.0f})
            .intensity(lights_intensity_r)
            .position({center_r.x(), center_r.y(), center_r.z()})
            .direction({dir_r.x(), dir_r.y(), dir_r.z()})
            .spotLightCone(0.08f, 0.15f)
            .falloff(200.0f)
            .build(*this->engine, this->light_r);
        this->scene->addEntity(this->light_r);

The problem is that only the first light renders. When I comment the first light, the second light gets rendered fine. But they won' render together at the same time. What could I be doing wrong?

[elias-Mimetrik]

I fixed this problem by upgrading filament. Thanks.