Just finished building my LDO Voron 2.4 Rev C and my BIGTREETECH PI TFT43 V2.1 Touchscreen touch feature does not work, The display video works fine and I can use MAINSAIL to home x and Y, but the touch screen function is not working. I tried the short cable that came with the screen. No Joy. Before i order another TFT screen, Is there something I am missing?