5.6 Dynamic Batching ERROR

Hi, On my Job we have a project with some years of development, we use Unity 4.7, but after we discussed the Advantages of changing to Unity 5 (primarily for the Debugging), we tried on the Unity 5.6, but we have a big problem, every time our character perform a certain animation, an error about the Dynamic Batching, we thought that maybe we need to change the animations because we use some empty sprites but that is a LOT of work, or we should forget the idea of triying to use Unity5?

Thanks and I wait for your reply