Flatpak does not list shaders

In the menu for Shaders, it just lists None or Blur.

I verified in the settings that it is set for OpenGL 3.2 and it is.

I navigated into the flatpak's directory in /var/lib to determine if the shader files are included in the flatpak and they are.

The issue being reported here is that the flatpak cannot see the shaders it comes with despite being in OpenGL mode.

Update: The shaders can be installed by manually creating the appropriate directory structure. Secondary problem is then exposed, most shaders are not displayed correctly.. but they are listed and can be applied.