Neopixel on Marlin 2.0.8.2 issue

[alienboyxp]

Using Marlin 2.0.8.2 when Neopixel enabled using PD3 pin (following Spider scheme and wiki documentation) UART communication all low issues.

[GerogeFu]

First we need to check if it is a hardware issue. Do you check other Marlin version or use Klipper ?

[kolbenhans]

Same for me, NeoPixels doesn't work.

Using Klipper Firmware
5V voltage is available on LED strip

printer.cfg set up with:
[neopixel caselight] pin: PD3 chain_count: 20 color_order: GRB initial_RED: 1.0 initial_GREEN: 0.0 initial_BLUE: 0.0

I also tried to change the colors by SET_LED command as written in Klipper documentaton:
SET_LED LED=caselight RED=1.0 GREEN=0.0 BLUE=0.0