Hello, I don't know if it's an isolated case, but as always, I wanted to test out the new beta with my game project as I did for 5.4 beta and 5.5 beta successfully without problem. So I upgraded the same project to 5.6 b2 (as always Unity asked me to reimport things before upgrading) I said yes as usual, but then, whem the project finally loaded, I realized all my materials were reseted ! In fact, I set up some parameters in those materials, as color, emission color and Cutout and they reseted back to white ! Also, it's very strange because all my gradients or other color box set up for scripts were also reseted ! Like the gradient is changed to a ugly white-black and colors are black. I also noticed getting hundreds of shader errors (the same) I can't remember but it was related to material.end and material.setpass. I don't know what to think about this. I had to downgrade the project to Unity 5.5, and set again all colors to fix it. May it be an issue with the beta Engine ?