Dynamic turn signals stop and parking lights - WS2812b

Using Arduino LEDs and Multiplexing
34

Pin 4 is still working badly. See the movie that I sent you. The control of this pin 4 must work in the same way as for pin 6, only the LEDs light must be up from: 7 to: 0. Yes, the position lamps are working. The rest works fine except for pin 4