Yes, I let Unity run update API. But Playmaker dll didn't updated. It's problem with Texture2D.LoadImage method. In Unity 5 it was in Texture2D class, but in Unity 2017 it is in ImageConversion class (extension class of Texture2D). So in normal C# scripts texture.LoadImage works as before, but in dll it doesn't. Maybe it can't find extension class ImageConversion?