Problem with LED STRIP APA102 on DUET 6HC

[Makoaaaa]

Hello,

I have a DUET 6HC board that controls my CNC machine, and I want to add an LED strip to it.
For that, I bought an APA102 LED strip, which allows me to cut the strip and use both parts independently.

I connected my LED strip to the DotStar pins for GND, Clock, and Data. Since the LEDs require more power than the DotStar pins can provide, I am using a PC power supply for the power.

Here is my firmware configuration for the LEDs:

M950 E0 C"led" T1 Q3000000
M150 E0 R255 P128 S20 F1
M150 E0 U255 B255 P255 S20

I am running RepRap Firmware (RRF) version 3.5.0.

Problem:
When I start my machine, the LEDs stay off. However, if I unplug and then replug the connector on the Duet, the first LED turns on. Then, one by one, the other LEDs start turning on.

I have verified that I have 5V at the power supply output and that there is continuity of the 5V line across the entire LED strip.

Does anyone know what could be causing this issue and how to fix it?

Thanks in advance!

[jay_s_uk]

@Makoaaaa update to 3.5.4. this was fixed in 3.5.2

[Makoaaaa]

@jay_s_uk Thanks, I will try tomorow.