Hello, Thank you for using Amplify Color, we really appreciate it. It would seem that the LUT texture is being compressed or our current requirements are unsupported on the 3g. Please make sure that your LUT texture settings match the values used on the LUT textures included in the Amplify Color package. What Unity version do you currently use and what is your target iOS version? Are you using AC in Mobile or Standard mode? We recently fixed a few issues that could cause similar problems, I will send you the latest build via PM. Thanks!