I did a fresh download just to be safe and still the same error message. and yes i found some "invalid shaders" in the game's output console.
Invalid shader (is it marked as incompatible type for this target?) "shd_haven_final":
Invalid shader (is it marked as incompatible type for this target?) "shd_daynight":
Invalid shader (is it marked as incompatible type for this target?) "shd_dust_cloud":
Invalid shader (is it marked as incompatible type for this target?) "shd_fade":
Invalid shader (is it marked as incompatible type for this target?) "shd_lava":
Invalid shader (is it marked as incompatible type for this target?) "shd_palette":
Invalid shader (is it marked as incompatible type for this target?) "shd_palette_rgb":
Invalid shader (is it marked as incompatible type for this target?) "shd_palette_simple":
Invalid shader (is it marked as incompatible type for this target?) "shd_palette_simple_rgb":
Invalid shader (is it marked as incompatible type for this target?) "shd_voronoi":
Invalid shader (is it marked as incompatible type for this target?) "shd_win_screen_text":
there is nothing explicitly related to shaders in the syntax that i can make heads or tails of. Is there anything that could be done about this?