A new build has been released on the default application branch which resolves many small issues. You can read about these in detail in the bug reports forum.
This update includes two modified shaders for terrain and directional lights. You must update your project to get the new shaders. You can do this by selecting the File > Project Manager menu to open the Project Manager. Then press the Update button to update your project. Any overwritten files will be backed up in the same folder with a ".bak" extension added to the file name.