This message is caused by having Particle MBlur map present in the scene. Corona does not support Particle MBlur map as it is a legacy, heavily “faked” feature. Adding this map may lead to instability or incorrect results.
Particle MBlur map present in the scene.
- Remove Particle MBlur map from the scene
- In case you need particle motion blur, use real Corona motion blur instead. It will render faster and look better