The AI found the problem, it determined that my alleged "high-end HDMI capture device" repeats one video frame every 144 frames to keep sync because its internal clock is not sync-accurate to NTSC.
ai doesn't work.
I just told it to make a test pattern ROM for my custom fpga core, deploy it, then connect remotely to the fgpa board and execute an onboard png snapshot function and copy it back; then, via the hdmi capture card on my pc connected to it, snap a frame, then compare the two outputs pixel-by-pixel, for color differences to see if the HDMI input chain has inaccurate color reproduction, and what patterns specifically causes it.
which, it 100% did in exactly one shot, with no other input or instruction.
