I have a problem using this package... I follow step by step of the tutorials/videos: Install the package. Go to the Sprite Editor. Bone Editor: create the skeleton. Create the Geometry. But! When I come to the Weights and click AUTO to autoGenerate the weights of the bones... NOTHING HAPPENS! No change the color of nothing, no information messages, no error... Only Silence! I repeat it a lot of times but with the same result... Please, what step I have lost? I'm using UNITY 2018.2.17f1 on Mac. Any help is welcome.