Shaders always compile when opening up project

After unchecking the OpenGL 3 (SE2) the shaders stopped compiling every time I opened my project and I just left the top checked. The settings were in Project settings/Platforms/Windows

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I have rebulid lighting and redid textures, but everytime I reopen the same project shaders are always being complied. How do I get it stop and compile for good?

THAT SETTING IS NOT AVAILABLE IN MY PROJECT. IT DOESN’T HAPPEN FOR EVERY PROJECT EITHER AND IT JUST STARTED IN THIS ONE.

My guess is that there is something going on with my landscape material. Regardless, how can I tell which shaders are compiling every time I start the project?