Always exporting with smooth shading

I’m not sure if I’m looking at this entirely wrong, but I’m having what I assume is an issue where no matter what mesh I export, in whatever format, the result is always in smooth shading which I don’t want. Yes, the mesh is set to flat shading and I’ve tried changing around export options but to no avail. I want some of my exports to specifically be exported with flat shading for example where I’m working within Substance Painter. What is going on?

Update: Apparently I had either an outdated or bugged version of Blender. Getting the latest version from the main site has fixed the issue.