Broken: Blender 2.79.4 Hash: 9eb5aa3
Worked: Actually it is a bug that comes from version 2.78 but its arrangement has not been determinant. I have always believed that it was a configuration of my PC.
Short description of error
Both in the preview and in the render, when modifying the scale of the texture, it is lost or stops showing. This works correctly if I render with CPU. It also works correctly on NVIDIA video cards (at least 850m). I have disabled all optimization settings made by the AMD driver from the configuration and disabled Crossfire but I do not solve the problem.
Exact steps for others to reproduce the error
Simply render or preview and modify the Scale of the wave texture