I’ve been trying to experiment with OSL. I extracted the OSL material from the lambertion demo file and incorporated it into a scene I made. Downloaded the matte and gabor_noise .osl and .oso files and put them in a directory named _shaders, and put <search_paths> in my scene file. The scene renders, but if I save the project and load it back, rendering fails because it can’t find the shaders, I see that the <search_paths> is missing from the saved file. Do I need to change some setting in appleseed studio?