Esp8266 d1 mini WS2812 weird behavior

Hey, I recently bought a WS2812 lightstrip (This one). When powering it, only 4 LEDs are lightning up:

I also tried powering it with a power supply with the ESP8266 and using only the power supply - Same result, that means it has nothing to do with the data send by WLED. Other lightstrips work with this board as expected.

I don’t know if this is the right place to ask.

Does anyone know what might cause this behavior?

Almost looks like some pre-defined segment or mapping is coming into play.
Can you change colours or affect the 4 LED’s in any way or are they random?

Is this a fresh install of the MCU?
Make sure you’ve defined the strip type as WS281x in LED Preferences.
Might be worth a factory default or full reload of the MCU.

Hey, it’s a fresh installation, the lightstrip is defined correctly. Also, the LEDs are always the same color with any effect/color combination

Can’t tell from the photo, but guessing you’re inputting data to the DI end?
Is this a new strip, has it ever worked?
Are you powering up from a good enough 5V supply?
Any chance you accidentally hooked a 5V strip to a 12V supply (even briefly)?

The lights are hooked up to the 5V pin of the esp, the Data flow is also correct. It’s a brand-new strip and never worked. I have already successfully used other strips with the exact same board and pins.

If that board still works with other strips, I would say a bum strip.
What happens if you just power the strip - don’t attach the board/data at all?
If you get the same lights, the strip is burnt, time to move on.

Ok, seems like it’s burned. Thanks for your help!

Intereting. Glad you worked it out. I had a similar issue but it turned out to be the data cable length 0_o (oops)