Discrepancy between libretro and librashader using tiny-ntsc and crt-yah

[kev4cards]

I have developed a shader preset using tiny-ntsc prepended to crt-yah with a custom LUT generated through gamutthingy.

librashader's command-line tool shows this with the opengl4 rendering option:

RetroArch outputs this:

Zip containing preset, LUT, and modified parameter files (done to live adjust parameters with smaller increments):
tiny-ntsc_crt-yah_mitsubishi_8858k.zip

[kev4cards]

Per Discord conversation, here is the D3D11 image:

The compare score results in 0.9999983034610749 with the output image appearing black: