Weird matrix behaviour (multiple leds)

I’m having weird issues with a newly created matrix. I’ve multiple matrixes that are working properly, the only difference is that the new matrix is 12v vs 5v.

What happens is that WLED counts 3 leds as one. So if I select 5 leds, any effect will use 15 leds. I’ve checked everything, and all the settings are the same as my other matrixes.

No idea what’s going on. Help is appreciated.

Cheers

Wow, I think I found the problem. Just figured out from another post that my strip probably addresses every third led. I didn’t even know that was a thing

LED count per pixel depends on IC controlling LEDs. There’s a strips with 3 LEDs per pixel and even 6 LEDs per pixel.